SpaceX CRS-7 Archives

July 21, 2015December 23, 2015 by Ken Kremer

Faulty Support Strut Likely Caused SpaceX Falcon 9 Rocket Failure: Elon Musk

The SpaceX Falcon 9 rocket and Dragon cargo spaceship dazzled in the moments after liftoff from Cape Canaveral, Florida, on June 28, 2015 but were soon doomed to a sudden catastrophic destruction barely two minutes later in the inset photo (left). Composite image includes up close launch photo taken from pad camera set at Space Launch Complex 40 at Cape Canaveral and mid-air explosion photo taken from the roof of the Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center, Florida as rocket was streaking to the International Space Station (ISS) on CRS-7 cargo resupply mission. Credit: Ken Kremer/kenkremer.com

The in-flight failure of a critical support strut inside the second stage liquid oxygen tank holding a high pressure helium tank in the Falcon 9 rocket, is the likely cause of the failed SpaceX launch three weeks ago on June 28, revealed SpaceX CEO and chief designer Elon Musk during a briefing for reporters held today, July 20, to explain why the critical cargo delivery run for NASA to the space station suddenly turned into a total disaster after a promising start.

The commercial booster and its cargo Dragon payload were unexpectedly destroyed by an overpressure event 139 seconds after a picture perfect blastoff from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida on June 28 at 10:21 a.m. EDT.

Musk emphasized that the failure analysis is still “preliminary” and an “initial assessment” based on the investigation thus far. SpaceX has led the investigation efforts under the oversight of the FAA with participation from prime customers NASA and the U.S. Air Force.

The root cause appears to be that the second stage strut holding the high pressure helium tank inside the 2nd stage broke at a bolt – far below its design specification and thereby allowing the tank to break free and swing away.

“The strut that we believe failed was designed and certified to handle 10,000 lbs of force, but failed at 2,000 lbs, a five-fold difference,” Musk explained.

“During acceleration of the rocket to 3.2 G’s, the strut holding down the helium tank failed. Helium was released, causing the over pressurization event.”

To date no other issues have been identified as possible failure modes, Musk elaborated.

The helium tanks are pressurized to 5500 psi and were breached during the over pressurization. The purpose of the helium tanks is to pressurize the first and second stage propellant tanks.

SpaceX Falcon 9 rocket explodes about 2 minutes after liftoff from Cape Canaveral Air Force Station in Florida on June 28, 2015. Credit: Ken Kremer/kenkremer.com

“We tested several hundred struts. On the outside they looked normal. But inside there was a problem,” Musk explained

“Detailed close-out photos of stage construction show no visible flaws or damage of any kind,” according to a SpaceX statement.

The struts are produced by an outside vendor that Musk would not identify. He added that in the future, SpaceX will likely choose a different vendor to manufacture the struts.

He said the struts were made from a type of stainless steel and would also likely be redesigned.

“The material of construction will be changed to Inconel,” Musk told me in response to a question.

Hundreds of the original type struts have been used to date on the first and second stages of the Falcon 9 with no issues. In the future, they will also be independently certified for use, by an outside contractor instead of the vendor.

The nine first stage Merlin 1D engines of the Falcon 9 were still firing nominally during the start of the mishap, said Musk. The first stage had nearly completed its planned firing duration when the explosion took place.

“The event happened very quickly, within 0.893 seconds,” Musk stated, from the first indication of an issue to loss of all telemetry.

“Preliminary analysis suggests the overpressure event in the upper stage liquid oxygen tank was initiated by a flawed piece of support hardware (a “strut”) inside the second stage,” noted SpaceX in a statement.

Video caption: Launch video of the CRS-7 launch on June 28, 2015 from a remote camera placed at Launch Complex 40. The launch would fail around two minutes later. Credit: Alex Polimeni/Spaceflight Now

The blastoff of the Dragon CRS-7 cargo mission for NASA was the first failure of the SpaceX Falcon 9 rocket after 18 straight successes and the firms first launch mishap since the failure of a Falcon 1 in 2008.

The SpaceX CRS-7 Dragon was loaded with over 4,000 pounds (1987 kg) of research experiments, an EVA spacesuit, water filtration equipment, spare parts, gear, computer equipment, high pressure tanks of oxygen and nitrogen supply gases, food, water and clothing for the astronaut and cosmonaut crews comprising Expeditions 44 and 45.

Umbilicals away and detaching from SpaceX Falcon 9 launch from Cape Canaveral, Florida, on June 28, 2015 that was doomed to disaster soon thereafter. Credit: Ken Kremer/kenkremer.com

The Dragon cargo freighter survived the explosion but was destroyed when it impacted the Atlantic Ocean.

“But the Dragon might have been saved if the parachutes had been deployed,” said Musk.

Unfortunately the software required to deploy the parachute was not loaded onboard.

“The new software required to deploy the parachutes will be included on all future Dragons, V1 and V2,” said Musk, referring to the cargo and crew versions of the SpaceX Dragon spaceship.

SpaceX Falcon 9 rocket and Dragon resupply spaceship explode about 2 minutes after liftoff from Cape Canaveral Air Force Station in Florida on June 28, 2015. Credit: Ken Kremer/kenkremer.com

The NASA cargo was valued at about $110 million. The launch itself was not insured.

The investigation board is reviewing data from over 3,000 telemetry channels as well as video and physical debris, he noted.

The next launch of a Falcon 9 will be postponed at least a few months until “no earlier than September” Musk indicated.

Two Falcon 9 launches had been set for August from Vandenberg AFB and Cape Canaveral. And the next launch to the ISS had been slated for September on the Dragon CRS-8 mission.

Musk said the next payload to be launched aboard a Falcon 9 has yet to be determined.

Starting in 2017, the Falcon 9 will launch astronauts to the ISS aboard the Crew Dragon.

Overall CRS-7 was the seventh SpaceX commercial resupply services mission and the eighth trip by a Dragon spacecraft to the station since 2012.

CRS-7 marked the company’s seventh operational resupply mission to the ISS under a $1.6 Billion contract with NASA to deliver 20,000 kg (44,000 pounds) of cargo to the station during a dozen Dragon cargo spacecraft flights through 2016 under NASA’s original Commercial Resupply Services (CRS) contract.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

SpaceX founder and CEO Elon Musk briefs reporters, including Universe Today, in Cocoa Beach, FL, during prior SpaceX Falcon 9 rocket blastoff from Cape Canaveral, FL. Credit: Ken Kremer/kenkremer.com

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Learn more about SpaceX, ULA, Mars rovers, Orion, Antares, MMS, NASA missions and more at Ken’s upcoming outreach events:

July 21/22: “SpaceX, Orion, Commercial crew, Curiosity explores Mars, MMS, Antares and more,” Kennedy Space Center Quality Inn, Titusville, FL, evenings/afternoon for July 22 Delta IV launch of USAF WGS-7 satellite

July 7, 2015December 23, 2015 by Ken Kremer

Falcon 9 Rocket Failure a Huge Blow to SpaceX: Musk

SpaceX CEO ElonMusk and NASA’s ISS Manager Mike Suffredini discuss ISS research and the June 28, 2015 Falcon 9 launch disaster at the International Space Station Research & Development Conference being held in Boston, Mass, on July 7. Credit: NASA

In his first public comments since the surprise disintegration of the commercial SpaceX Falcon 9 rocket some two minutes after last week’s liftoff on June 28, SpaceX CEO Elon Musk said today (July 7) that the launch failure was a “huge blow” to his company and the cause remains elusive and is under intense investigation.

“The accident was a huge blow to SpaceX,” Musk told the opening session of the International Space Station Research & Development Conference being held in Boston, Mass, during an on-stage conversation with NASA’s International Space Station manager Mike Suffredini.

The private SpaceX Falcon 9 booster broke up just minutes after a picture perfect blastoff from Cape Canaveral on a crucial logistics flight for NASA, carrying a SpaceX Dragon cargo freighter that was headed to the International Space Station (ISS).

Dragon was chock full of over two tons of research experiments and much needed supplies and gear for the multinational crews serving aboard.

“There’s still no clear theory that fits with all the data,” Musk said. “We take these missions incredibly seriously.”

The cargo ships function as a railroad to space and the lifeline to keep the station continuously crewed and functioning. Without periodic resupply by visiting vehicles the ISS cannot operate.

The SpaceX Falcon 9 and Dragon were destroyed just over two minutes after a stunning liftoff from Space Launch Complex 40 at Cape Canaveral Air Force Station in sunny Florida at 10:21 a.m. EDT.

The upper stage of the rocket suddenly exploded due to an as yet unexplained anomaly as the nine first stage Merlin 1D engines kept firing. Moments later it vaporized into a grayish cloud at supersonic speed, raining debris down into the Atlantic Ocean.

Although the second stage appears to be the culprit in the disaster, Musk said that there is still not a coherent cause and explanation of the data and was hard to interpret.

“Whatever happened is clearly not a sort of simple, straightforward thing,” he explained. “In this case, the data does seem to be quite difficult to interpret.”

“So we want to spend as much time as possible just reviewing the data. No clear theory fits all the data.”

The Falcon 9 was transmitting data on over 3,000 channels of flight data streams.

Virtually since the moment of the mishap approximately 139 seconds after the otherwise successful launch, SpaceX engineers have been pouring over the data to try and determine the root cause of the accident.

“Everyone that can engage in the investigation at SpaceX is very, very focused on that,”Musk elaborated. “We want to spend as much time as possible just reviewing the data.”

From the beginning Musk indicated that there was some type of over pressure event in the upper stage liquid oxygen tank and he elaborated a bit at the conference.

“At this point, the only thing that’s really clear was there was some kind of over-pressure event in the upper stage liquid oxygen tank, but the exact cause and sequence of events, there’s still no clear theory that fits with all the data.”

“So we have to determine if some of the data is a measurement error of some kind, or if there’s actually a theory that matches what appear to be conflicting data points.”

SpaceX is conducting an intense and thorough investigation with the active support of various government agencies including the FAA, NASA and the U.S. Air Force.

“The interaction with NASA has been great so far,” Musk said. “The biggest challenge is that there are a lot of inquiries coming in simultaneously, so it’s hard to keep responding to everyone right away.”

The accident investigation is in full swing both at the Cape and SpaceX headquarters in Hawthorne, Ca.

Hans Koenigsmann, SpaceX VP of Mission Assurance, is leading the accident investigation for SpaceX.

“The process for determining the root cause of Sunday’s mishap is complex, and there is no one theory yet that is consistent with the data,” SpaceX spokesman John Taylor told me earlier.

“Our engineering teams are heads down reviewing every available piece of flight data as we work through a thorough fault tree analysis in order to identify root cause.”

The June 28 launch was the 19th overall for the Falcon 9 booster and the first failure in an otherwise hugely successful program by the new space company founded by Musk and headquartered in Hawthorne, CA. Musk’s oft stated goals include radically slashing the cost of access to space to enable much wider participation in the space frontier by entrepreneurs and individuals and foster much greater exploration that will aid human missions to the Red Planet.

SpaceX may have more to say publicly later this week.

“I think we’ll be able to say something more definitive towards the end of the week,” Musk noted.

In the meantime all SpaceX launches are on hold for several months at least.

The SpaceX CRS-7 cargo launch failure was the second of two back to back cargo delivery launch failures run to the space station, including both American and Russian rockets since April, and the third in the past eight months that significantly crimped the stations stockpiles and abruptly impacted upcoming crew rotations and launches throughout the remainder of 2015.

Fortunately, the string of launch failures with the successful launch the Russian Progress 60 cargo freighter on July 3, five days after the SpaceX CRS-7 failure. Progress 60 docked at the ISS on July 5 with three tons of supplies, to the relief of the station partners worldwide.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

Mike Suffredini, NASA International Space Station manager and Hans Koenigsmann, SpaceX VP of Mission Assurance discuss Space CRS-7 mission to the ISS at media briefing at the Kennedy Space Center. Credit: Ken Kremer/kenkremer.com — Mike Suffredini, NASA International Space Station manager and Hans Koenigsmann, SpaceX VP of Mission Assurance discuss SpaceX CRS-7 mission to the ISS at media briefing at the Kennedy Space Center. Credit: Ken Kremer/kenkremer.com

July 5, 2015December 23, 2015 by Ken Kremer

Russian Progress Supply Freighter Docks at Space Station, Ending String of International Launch Failures

The ISS Progress M-28 (Progress 60) cargo craft is seen just a few minutes away from successful docking to the International Space Station on July 5, 2015. Credit: Roscosmos

Over three tons of much needed supplies and equipment finally reached the crew living aboard the International Space Station (ISS), when an unmanned and highly anticipated Russian Progress cargo ship successfully docked at the orbiting outpost early this morning, Sunday July 5, at 3:11 a.m. EDT (10:11 MSK, Moscow local time)- to all the partners relief.

This follows two straight international resupply launch failures that significantly crimped the stations stockpiles and abruptly impacted upcoming crew rotations and station launches throughout the remainder of 2015.

Today’s arrival of Russia’s Progress 60 (Progress M-28M) logistics vehicle ended a string of Russian and American resupply mission failures that began some two months ago with the devastating Soyuz rocket launch failure of the prior Progress 59 ship on April 28, and continued with the mid-air explosion of a commercial SpaceX Falcon 9 and unpiloted SpaceX Dragon CRS-7 cargo ship exactly one week ago on June 28.

The Progress 60 was automatically docked at an earth facing port on the Russian “Pirs” docking module on the Russian segment of the ISS – that finally puts the station on the road to recovery with a stockpile of 6100 pounds (2770 kg) of new fuel, food, oxygen, research experiments and gear.

“The operation was carried out in an automated mode,” according to Russian Mission Control near Moscow.

The docking operation was conducted under the guidance of the Russian ISS Expedition 44 commander Gennady Padalka and flight engineer Mikhail Kornienko as well as experts at the Russian Mission Control Center, as the vehicles were soaring about 251 miles (400 km) over the south Pacific, southeast of New Zealand. NASA astronaut Scott Kelly is also aboard, rounding out the current three man crew.

The ISS Progress 60 cargo craft is seen just a few minutes away from docking to the International Space Station. Credit: NASA TV

The successful docking came two days after the blastoff of the unmanned Progress 60 cargo freighter atop a Soyuz-U booster from the Baikonur Cosmodrome on July 3. This signifies the restoration of Russia’s critical cargo lifeline to the ISS and was like celebrating Christmas in July.

“Guys, congratulations. your cargo vehicle has arrived,” said Russian flight director Vladimir Solovyev from Russian mission control.

“We congratulate you as well,” cosmonaut Gennady Padalka replied from inside the station’s Russian-built Zvezda command module. “Thanks so much for sending it our way. It feels like Christmas in July.”

The station is totally dependent on a regular train of supply runs from the partner nations on Earth to operate with a crew and conduct research investigations that will aid in sending humans to deep space destinations.

The ISS Progress 60 cargo craft is now docked to the Pirs docking compartment. Credit: NASA TV — The ISS Progress 60 cargo craft is now docked to the Pirs docking compartment shown in this schematic. Credit: NASA TV

America’s cargo lifeline is currently on hold following the dual launch failures of both US commercial supply trains to low Earth orbit- involving the SpaceX Falcon 9 last week and the catastrophic Orbital ATK Antares/Cygnus Orb-3 mission launch disaster on October 28, 2014 which I saw at NASA Wallops.

The SpaceX Falcon 9 and Dragon exploded barely two minutes after liftoff from Cape Canaveral. The rocket disintegrated in mere moments as I watched from the roof of the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida.

All told, an unprecedented trio of launch failures with three different American and Russian rockets took place over the past eight months.

Progress 60 resupply ship was loaded with over three tons of food, fuel, oxygen, science experiments, water and supplies on a crucial mission for the International Space Station crew to keep them stocked with urgently needed life support provisions and science experiments in the wake of the twin launch failures in April and June.

The ISS Progress M-28M (Progress 60) cargo craft is seen just a few minutes away from successful docking to the International Space Station. Credit: Roscosmos

The ship delivered approximately 1,146 pounds (520 kg) of propellant, 105 pounds (48 kg) of oxygen, 926 pounds (420 kg) of water and 3,071 pounds (1393 kg) pounds of crew supplies, provisions, research equipment, science experiments, student experiments, tools and spare parts and parcels for the crew.

The Progress was stuffed with 100 kg of additional food stocks to make up for the losses suffered from the twin Russian Progress 59 and SpaceX CRS-7 failures.

“As for food, 430 kilos of foodstuffs will be delivered to the ISS or 100 kilos more than the amount delivered by the previous spacecraft,” noted Mission Control.

“The Progress space freighter will deliver more food than usual so that it will suffice for everyone,” Alexander Agureyev, chief of the ISS crew nourishment department at the Institute of Medical and Biological Problems, told the Russian news agency TASS.

Progress 60 is scheduled to remain docked to Pirs for the next four months.

In the wake of the trio of American and Russian launch failures, the crew currently enjoys only about four months of reserves compared to the more desirable six months stockpile in case of launch mishaps.

Progress 60 will extend the station supplies by about a month’s time.

The next cargo ship now slated to launch is the Japanese HTV-5 on August 16.

Blastoff of the Russian Progress 60 resupply ship to the ISS from the Baikonur Cosmodrome on July 3, 2015. Credit: Roscosmos

The SpaceX CRS-7 Dragon was packed with over 4,000 pounds (1987 kg) of research experiments, an EVA spacesuit, water filtration equipment, spare parts, gear, computer equipment, high pressure tanks of oxygen and nitrogen supply gases, food, water and clothing for the astronaut and cosmonaut crews comprising Expeditions 44 and 45.

These included critical materials for the science and research investigations for the first ever one-year crew to serve aboard the ISS – comprising NASA astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko.

The Dragon was also packed with the first of two new International Docking Adapters (IDS’s) required for the new commercial crew space taxis being built by Boeing and SpaceX to dock at the ISS starting in 2017.

The next crewed launch to the station is set for July 22 aboard a Soyuz capsule with with an international trio comprising NASA astronaut Kjell Lindgren, Oleg Kononenko of the Russian Federal Space Agency and Kimiya Yui of the Japan Aerospace Exploration Agency. Their flight was delayed from May 26 after the Progress 59 launch failure to ensure that there are no issues with the Soyuz rocket booster that will boost them to the ISS.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

July 3, 2015December 23, 2015 by Ken Kremer

Russian Progress Launch Restores Critical Cargo Lifeline to Space Station

Blastoff of the Russian Progress 60 resupply ship to the ISS from the Baikonur Cosmodrome on July 3, 2015. Credit: Roscosmos
Story updated[/caption]

A sigh of relief was heard worldwide with today’s (July 3) successful launch to orbit of the unmanned Progress 60 cargo freighter atop a Soyuz-U booster from the Baikonur Cosmodrome, signifying the restoration of Russia’s critical cargo lifeline to the International Space Station (ISS), some two months after the devastating launch failure of the prior Progress 59 spaceship on April 28.

Friday’s triumphant Progress launch also comes just five days after America’s cargo deliveries to the ISS were put on hold following the spectacular failure of a commercial SpaceX Falcon 9 rocket launched from the Florida Space Coast on Sunday, June 28, carrying the unpiloted SpaceX Dragon CRS-7 which broke up in flight.

The Progress 60 resupply ship, also known as Progress M-28M, was loaded with over three tons of food, fuel, oxygen, science experiments, water and supplies on a crucial mission for the International Space Station crew to keep them stocked with urgently needed life support provisions and science experiments in the wake of the twin launch failures in April and June.

The Soyuz-U carrier rocket launched Progress into blue skies at 10:55 a.m. local time in Baikonur (12:55 a.m. EDT) from the Baikonur Cosmodrome in Kazakhstan. The launch was webcast live on NASA TV.

“Everything went by the book,” said NASA commentator Rob Navias during the webcast. “Everything is nominal.”

The ISS Progress 60 resupply ship streak to orbit after on time launch from the Baikonur Cosmodrome on July 3, 2015. Credit: Roscosmos

The International Space Station was flying about 249 miles over northwestern Sudan, near the border with Egypt and Libya, at the moment of liftoff. Note: See an exquisite photo of the Egyptian pyramid photographed from the ISS in my recent story – here.

After successfully separating from the third stage Progress reach its preliminary orbit less than 10 minutes after launch from Baikonur and deployed its solar arrays and navigational antennas as planned.

Live video was received from Progress after achieving orbit showing a beautiful view of the Earth below.

A camera from the Progress spacecraft shows the Earth below as it begins its two day trip to the space station. Credit: NASA TV

A two day chase of 34 orbits of Earth over the next two days will bring the cargo craft to the vicinity of the station for a planned docking to the Russian segment of the orbiting laboratory at 3:13 a.m. Sunday, July 5.

NASA TV will provide live coverage of the arrival and docking operation to the Pirs Docking Compartment starting at 2:30 a.m. EDT on Sunday, July 5.

Watch live on NASA TV and online at http://www.nasa.gov/nasatv

NASA astronaut Scott Kelly and Russian cosmonauts Mikhail Kornienko and Gennady Padalka are currently living and working aboard the station as the initial trio of Expedition 44 following the safe departure and landing of the three person Expedition 43 crew in mid June.

Kelly and Kornienko comprise the first ever 1 Year Crew to serve aboard the ISS and are about three months into their stay in space.

In the span of just the past eight months, three launches of unmanned cargo delivery runs to the space station have failed involving both American and Russian rockets.

The cargo ships function as a railroad to space and function as the lifeline to keep the station continuously crewed and functioning. Without periodic resupply by visiting vehicles from the partner nations the ISS cannot continue to operate.

The Orbital Sciences Antares/Cygnus Orb 3 mission exploded in a massive and frightening fireball on October 28, 2014 which I witnessed from the press site from NASA Wallops in Virginia.

The Russian Soyuz/Progress 59 mission failed after the cargo vessel separated from the Soyuz booster rockets third stage and spun wildly out of control on April 28, 2015 and eventually crashed weeks later during an uncontrolled plummet back to Earth over the ocean on May 8. The loss was traced to an abnormal third stage separation event.

Roscosmos, the Russian Federal Space Agency, switched this Progress vehicle to an older version of the Soyuz rocket which had a different third stage configuration that was not involved in the April failure.

The ISS Progress 60 resupply ship launches on time from the Baikonur Cosmodrome. Credit: NASA TV

Russian officials decided to move up the launch by about a month from its originally planned launch date in August in order to restock the station crew with critically needed supplies as soon as practical.

Following Sundays SpaceX cargo launch failure, the over 6100 pounds of new supplies on Progress are urgently needed more than ever before. Loaded aboard are 1,146 pounds (520 kg) of propellant, 105 pounds (48 kg) of oxygen, 926 pounds (420 kg) of water and 3,071 pounds (1393 kg) pounds of crew supplies, provisions, research equipment, science experiments, tools and spare parts and parcels for the crew.

In the wake of the trio of American and Russian launch failures, the crews current enjoy only about four month of supplies reserves compared to the more desirable six months stockpile in case of launch mishaps.

Progress 60 will extend the station supplies by about a month’s time.

These included critical materials for the science and research investigations for the first ever one-year crew to serve aboard the ISS – comprising Kelly and Kornienko.

The Dragon was also packed with the first of two new International Docking Adapters (IDS’s) required for the new commercial crew space taxis to dock at the ISS starting in 2017.

The three cargo launch failures so close together are unprecedented in the history of the ISS program over the past two decades.

The next cargo ship now slated to launch is the Japanese HTV-5 on August 16.

Antares descended into hellish inferno after first stage propulsion system at base of Orbital Sciences Antares rocket exploded moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014. Credit: Ken Kremer – kenkremer.com

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

July 2, 2015December 23, 2015 by Ken Kremer

Falcon 9 Failure Investigation Focuses on Data not Debris as SpaceX Seeks Root Cause

KENNEDY SPACE CENTER, FL – SpaceX and NASA are diligently working to “identify the root cause” of the June 28 in flight failure of the firms Falcon 9 rocket, as the accident investigation team focuses on “flight data” rather than recovered debris as the best avenue for determining exactly what went wrong, a SpaceX spokesperson told Universe Today.

The SpaceX Falcon 9 booster broke up just minutes after a picture perfect blastoff from a seaside Florida launch pad on a critical mission for NASA bound for the International Space Station (ISS). It was carrying a SpaceX Dragon cargo freighter loaded with research equipment and new hardware to enable crewed spaceships to dock at the orbiting outpost.

The accident investigation team is still seeking the root cause of the launch failure through a complex fault tree analysis.

“The process for determining the root cause of Sunday’s mishap is complex, and there is no one theory yet that is consistent with the data,” said SpaceX spokesman John Taylor.

The accident investigation is in full swing both at the Cape and SpaceX headquarters in Hawthorne, Ca.

“Our engineering teams are heads down reviewing every available piece of flight data as we work through a thorough fault tree analysis in order to identify root cause.”

Hans Koenigsmann, SpaceX VP of Mission Assurance, is leading the accident investigation for SpaceX.

SpaceX is conducting an intense and thorough investigation with the active support of various government agencies including the FAA, NASA and the U.S. Air Force.

The SpaceX Falcon 9 and Dragon were destroyed just over two minutes after a stunning liftoff from Space Launch Complex 40 at Cape Canaveral Air Force Station in sunny Florida at 10:21 a.m. EDT.

The SpaceX CRS-7 cargo resupply mission to the ISS began flawlessly. The nine Merlin 1D engines powering the Falcon 9 rockets first stage were firing nominally at launch to produce about 1.3 million pounds of liftoff thrust for almost their entire duration.

However, approximately 139 seconds into the planned 159 second firing of the first stage engine, the majestic blastoff went awry as the upper stage of the vehicle experienced an as yet unexplained anomaly and suddenly exploded, vaporizing into a grayish cloud at supersonic speed and raining debris down into the Atlantic Ocean.

SpaceX Falcon 9 rocket launch from Cape Canaveral, Florida, on June 28, 2015. Credit: Alex Polimeni

The Falcon 9 has transmitting data on over 3,000 channels of flight data streams.

But something went wrong apparently with the upper stage said SpaceX CEO Elon Musk.

“There was an overpressure event in the upper stage liquid oxygen tank. Data suggests counterintuitive cause,” tweeted Musk.

But why that happened and the vehicle disintegrated in mere seconds is still a mystery to be resolved through careful fault tree analysis of the data.

“Cause still unknown after several thousand engineering-hours of review. Now parsing data with a hex editor to recover final milliseconds.”

While SpaceX and Coast Guard ships have recovered some debris in the days since the launch mishap, the data streams are expected to be the most useful source of information to the investigation team.

Hex editors are being used to comb through the data.

A hex editor (or binary file editor or byte editor) is a type of computer program that allows for manipulation of the fundamental binary data that constitutes a computer file.

The name ‘hex’ comes from ‘hexadecimal’: a standard numerical format for representing binary data.

Some data was transmitted after the breakup.

The accident investigation teams are currently in the process of recreating the final milliseconds of the flight to give them some additional insights into what may have happened, when and why.

View of International Docking Adapter 2 (IDA-2) being processed inside the Space Station Processing Facility (SSPF) at NASA Kennedy Space Center for eventual launch to the ISS in the trunk of a SpaceX Dragon on the CRS-9 mission. It will be connected to the station to provide a port for Commercial Crew spacecraft carrying astronauts to dock to the orbiting laboratory as soon as 2017. The identical IDA-1 was destroyed during SpaceX CRS-7 launch failure on June 28, 2015. Credit: Ken Kremer/kenkremer.com

In the meantime all SpaceX launches are on hold for several months at least.

The next Falcon 9 launch scheduled was for NASA’s Jason 3 from Vandenberg Air Dorce Base in California

The next SpaceX cargo Dragon had been scheduled for liftoff in September 2015 on the CRS-8 mission, but is now postponed pending the results of the return to flight investigation.

There are sufficient supplies on board the ISS to keep the crew continuing their mission until at least October 2015.

These included critical materials for the science and research investigations for the first ever one-year crew to serve aboard the ISS – comprising Scott Kelly and Mikhail Kornienko.

The Dragon was also packed with the first of two new International Docking Adapters (IDS’s) required for the new commercial crew space taxis to dock at the ISS starting in 2017.

Another Russian Progress vehicle is set to fly on the next resupply mission from the Baikonur Cosmodrome on Friday, July 3.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

SpaceX Falcon 9 rocket launch from Cape Canaveral, Florida, on June 28, 2015. Credit: Julian Leek

June 29, 2015December 23, 2015 by Ken Kremer

Cause of SpaceX Falcon 9 Rocket Failure Unknown; Launch Explosion Photos

SpaceX Falcon 9 rocket and Dragon resupply spaceship explode about 2 minutes after liftoff from Cape Canaveral Air Force Station in Florida on June 28, 2015. Credit: Ken Kremer/kenkremer.com
Story and photos expanded[/caption]

KENNEDY SPACE CENTER, FL – The root cause of Sundays (June 28) devastating launch failure of the commercial SpaceX Falcon 9 rocket is “still unknown” says SpaceX CEO and founder Elon Musk, following the loss of the NASA contracted resupply mission carrying crucial gear and research experiments to the crew serving aboard the Earth orbiting International Space Station (ISS).

Meanwhile, search and recovery teams from SpaceX and the Coast Guard are scouring the ocean and beaches along the Florida Space Coast for any signs of potentially dangerous Falcon rocket debris that rained down from the sky into the Atlantic Ocean after the sudden explosion unexpectedly destroyed the vehicle barely two minutes after a sun drenched liftoff from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 10:21 a.m. EDT.

All appeared normal as the Falcon 9 booster and Dragon resupply spaceship were streaking skywards through majestically blue Florida skies when catastrophe struck at approximately 148 seconds after blastoff and the rocket exploded violently- utterly destroying the rocket ship and its two ton load of critical supplies heading to the astronauts and cosmonauts living on board the ISS.

The upper stage appeared to break up in flight as the nine first stage Merlin 1D engines were firing as planned and the rocket was arcing over.

But why that happened and the vehicle disintegrated in mere seconds is still a mystery which will take some time to resolve.

“Cause still unknown after several thousand engineering-hours of review. Now parsing data with a hex editor to recover final milliseconds,” tweeted SpaceX CEO Elon Musk.

Although the cause is unknown, Musk also announced that the failure might be related to a problem with the Falcon 9 upper stage. since the first stage engines were still firing as planned.

“There was an overpressure event in the upper stage liquid oxygen tank. Data suggests counterintuitive cause,” tweeted Musk.

SpaceX Falcon 9 rocket and Dragon resupply spaceship streaking skywards until explosion about 2 minutes after liftoff from Cape Canaveral Air Force Station in Florida on June 28, 2015. Credit: Ken Kremer/kenkremer.com

The rocket was traveling about 5000 km/h at an altitude of 45 kilometers at the time of the mishap.

“Falcon 9 experienced a problem shortly before first stage shutdown. Will provide more info as soon as we review the data,” tweeted SpaceX CEO Elon Musk soon after the explosion.

The pressurized section of the Dragon was packed with over 4,000 pounds of research experiments, spare parts, gear, high pressure supply gases, food, water and clothing for the astronaut and cosmonaut crews comprising Expeditions 44 and 45 on the ISS.

Sunday’s launch was the 19th launch of the Falcon 9 rocket and the first failure after 18 straight successes.

SpaceX formed a failure investigation board immediately following the launch failure of the SpaceX Commercial Resupply Services 7 (CRS-7) mission bound for the ISS. The FAA and NASA will assist in the investigation.

The launch was the sixth for SpaceX this year, which had been picking up its launch pace dramatically compared to 2014.

SpaceX Falcon 9 rocket exploded shortly after liftoff from Cape Canaveral Air Force Station, Florida on June 28, 2015. Credit: Ken Kremer/kenkremer.com

It was the third launch failure of a cargo delivery run to the space station in the past half year -including both American and Russian rockets.

The Orbital Sciences Antares/Cygnus Orb 3 mission exploded in a massive an frightening fireball on October 28, 2014 which I witnessed from the press site from NASA Wallops in Virginia.

The Russian Soyuz/Progress 59 mission failed after the cargo vessel separated from the booster rockets third stage and spun wildly out of control in April 2015 and eventually crashed.

Myself and other members of the media were watching and photographing the SpaceX Falcon 9 launch from atop the iconic Vehicle Assembly Building (VAB) when the launch mishap occurred.

See a galley of my launch failure explosion photos herein.

Watch for Ken’s continuing onsite coverage of the CRS-7 launch from the Kennedy Space Center and Cape Canaveral Air Force Station.

First stage propulsion system at base of Orbital Sciences Antares rocket appears to explode moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014, at 6:22 p.m. Credit: Ken Kremer – kenkremer.com

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

June 28, 2015December 23, 2015 by Ken Kremer

SpaceX Dragon Destroyed in Catastrophic Explosion Soon After Florida Blastoff

KENNEDY SPACE CENTER, FL – A SpaceX Falcon 9 rocket and Dragon cargo ship loaded with critical supplies for the International Space Station (ISS) were destroyed by a catastrophic explosion starting approximately 148 seconds after a successful blastoff today, June 28, from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 10:21 a.m. EDT.

“Eastern Range confirms the Falcon 9 and Dragon vehicle broke up,” according to the USAF Eastern Range, 45th Space Wing as the vehicle was in flight and the first stage was firing.

The failure was immediately obvious to all of us watching the launch live on site from the Kennedy Space Center press site when the rocket disappeared into a expanding white cloud that was totally abnormal. See my launch and explosion photos herein.

“At this point, it’s not clear to the launch team exactly what happened,” NASA Launch Commentator George Diller reported on the live NASA TV broadcast.

It was the third launch failure of a cargo delivery run to the space station in the past half year -including both American and Russian rockets.

The Falcon 9 stopped ascending and broke apart and an abnormal vapor streak formed ahead of the rockets planned ascent path to orbit.

Within moments falling debris was visible in eyewitness photos from multiple angles.

SpaceX Falcon 9 rocket explodes about 2 minutes after liftoff from Cape Canaveral. Credit: Ken Kremer/kenkremer.com — SpaceX Falcon 9 rocket explodes about 2 minutes after liftoff from Cape Canaveral on June 28, 2015. Credit: Ken Kremer/kenkremer.com

“Falcon 9 experienced a problem shortly before first stage shutdown. Will provide more info as soon as we review the data,” tweeted SpaceX CEO Elon Musk soon after the explosion.

Details to follow

SpaceX Falcon 9 rocket exploded shortly after liftoff from Cape Canaveral. Credit: Ken Kremer/kenkremer.com

Watch for Ken’s continuing onsite coverage of the CRS-7 launch from the Kennedy Space Center and Cape Canaveral Air Force Station.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

………….

Learn more about SpaceX, Boeing, Space Taxis, Europa, Rosetta, Mars rovers, Orion, SLS, Antares, NASA missions and more at Ken’s upcoming outreach events:

Jun 28: “SpaceX launch, Orion, Commercial crew, Curiosity explores Mars, Antares and more,” Kennedy Space Center Quality Inn, Titusville, FL, evenings

June 27, 2015December 23, 2015 by Ken Kremer

SpaceX set for Station Resupply Blastoff with Crew Docking Adapter and Bold Landing Attempt on June 28 – Watch Live

SpaceX Falcon 9 and Dragon blastoff from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida on April 14, 2015 at 4:10 p.m. EDT on the CRS-6 mission to the International Space Station. Credit: Ken Kremer/kenkremer.com

SpaceX Falcon 9 and Dragon are due to blastoff on June 28, 2015 from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 10:21 a.m. EDT on the CRS-7 mission to the International Space Station. Photo of last SpaceX launch to ISS in April 2015. Credit: Ken Kremer/kenkremer.com
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KENNEDY SPACE CENTER, FL – With launch less than a day away for SpaceX’s seventh commercial resupply mission carrying a two ton payload of critical science and cargo for the future buildup of human spaceflight to the International Space Station (ISS) on Sunday, June 28, “everything is looking great” and all systems are GO, Hans Koenigsmann, SpaceX VP of mission assurance announced at a media briefing for reporters at the Kennedy Space Center.

The weather outlook along the Florida Space Coast is fantastic as U.S. Air Force 45th Weather Squadron forecasters are predicting a 90 percent chance of favorable conditions for lift off of the SpaceX Falcon 9 rocket and Dragon spacecraft, slated for 10:21 a.m. EDT, Sunday, June 28, from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida.

The Falcon 9 first stage is outfitted with four landing legs and grid fins to enable the landing attempt, which is a secondary objective of SpaceX. Cargo delivery to the station is the overriding primary objective and the entire reason for the CRS-7 mission.

If you are free this weekend and all continues to go well, this could well be your chance to be an eyewitness to a magnificent space launch in sunny Florida – and see a flight that signifies significant progress towards restoring America’s ability to once again launch our astronauts on American rockets from American soil.

NASA Television plans live launch coverage starting at 9 a.m EDT on June 28:

You can watch the launch live on NASA TV here: http://www.nasa.gov/nasatv

SpaceX also plans live launch coverage: www.spacex.com/webcast

Moon over SpaceX Falcon 9 and Dragon at Cape Canaveral Air Force Station for CRS-7 mission to ISS. Credit: Ken Kremer/kenkremer.com

The launch window is instantaneous, meaning that the rocket must liftoff at the precisely appointed time. Any delays like on Monday due to weather or technical factors will force a scrub.

The mission is critical for NASA in more ways than one, in addition to the science cargo, the SpaceX Dragon spaceship is loaded with the first of two International Docking Adapters (IDA’s), pictured below, that will be connected to the space station to provide a place for Commercial Crew spacecraft carrying astronauts to dock to the orbiting laboratory as soon as 2017.

The approximately 30 inch thick and ring shaped IDA is loaded in the unpressurized truck section at the rear of the Dragon.

The pressurized section of the Dragon is packed with over 4,000 pounds of research experiments, spare parts, gear, high pressure supply gases, food, water and clothing for the astronaut and cosmonaut crews comprising Expeditions 44 and 45.

These include critical materials for the science and research investigations for the first ever one-year crew to serve aboard the ISS – comprising NASA astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko.

The science payloads will offer new insight to combustion in microgravity, perform the first space-based observations of meteors entering Earth’s atmosphere, continue solving potential crew health risks and make new strides toward being able to grow food in space, says NASA.

Some three dozen student science experiments are also flying aboard. The cargo also includes the METEOR camera.

Both IDA’s were built by Boeing. They will enable docking by the new space taxis being built by Boeing and Space X – the CST-100 and crew Dragon respectively, to carry our crews to the ISS and end our sole source reliance on the Russian Soyuz capsule.

IDA 1 will be attached to the forward port on the Harmony node, where the space shuttles used to dock.

If Dragon launches on Sunday as planned, it will reach the space station after a two day pursuit on Tuesday, June 30.

NASA’s Scott Kelly of NASA will use the station’s Canadarm2 robotic arm to reach out and capture Dragon at about 7 a.m. He will be assisted by Station commander Gennady Padalka of the Russian Federal Space Agency (Roscosmos) as they operate the 57 foot long arm from the station’s cupola.

NASA TV coverage of rendezvous and grapple of Dragon will begin at 5:30 a.m. on Tuesday. Coverage of Dragon’s installation to the Earth-facing port of the Harmony module will begin at 8:30 a.m.

The ship will remain berthed at the ISS for about five weeks.

Watch for Ken’s continuing onsite coverage of the CRS-7 launch from the Kennedy Space Center and Cape Canaveral Air Force Station.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

………….

Learn more about SpaceX, Boeing, Space Taxis, Europa, Rosetta, Mars rovers, Orion, SLS, Antares, NASA missions and more at Ken’s upcoming outreach events:

Jun 27-28: “SpaceX launch, Orion, Commercial crew, Curiosity explores Mars, Antares and more,” Kennedy Space Center Quality Inn, Titusville, FL, evenings

SpaceX Falcon 9 and Dragon poised at Cape Canaveral Space Launch Complex 40 in Florida for planned April 14 launch to the International Space Station on the CRS-6 mission. Credit: Ken Kremer/kenkremer.com

June 11, 2015December 23, 2015 by Ken Kremer

Record Setting Italian Female Astronaut and ISS Crewmates Land in Sunny Kazakhstan

The Soyuz TMA-15M spacecraft is seen as it lands with Expedition 43 commander Terry Virts of NASA, cosmonaut Anton Shkaplerov of the Russian Federal Space Agency (Roscosmos), and Italian astronaut Samantha Cristoforetti from European Space Agency (ESA) near the town of Zhezkazgan, Kazakhstan on Thursday, June 11, 2015. Virtz, Shkaplerov, and Cristoforetti are returning after more than six months onboard the International Space Station where they served as members of the Expedition 42 and 43 crews. Photo Credit: (NASA/Bill Ingalls)

An international crew comprising a Russian cosmonaut, a US astronaut and an Italian astronaut who accomplished a record setting flight for time in space by a female, departed the International Space Station (ISS) earlier today, June 11, and safely landed in sunny and warm Kazakhstan tucked inside their Russia Soyuz ferry ship after a successful and extended 199-day mission devoted to science and station upgrades.

The multinational trio comprising Expedition 43 Commander Terry Virts of NASA, Flight Engineers Anton Shkaplerov of the Russian Federal Space Agency (Roscosmos) and Samantha Cristoforetti of ESA (European Space Agency) undocked from the orbiting outposts Russian Rassvet module as scheduled in the Soyuz TMA-15M spaceship at 6:20 a.m. EDT while soaring some 250 miles (400 kilometers) above Mongolia.

A four-minute 40-second deorbit burn at 8:51 a.m EDT slowed the craft for the fiery reentry into the Earth’s atmosphere.

The crew touched down just a few hours after undocking at 9:44 a.m. EDT (7:44 p.m., Kazakh time), southeast of the remote town of Dzhezkazgan on the steppes of Kazakhstan, about an hour and a half before sundown in delightfully summer weather. Temperatures today were in the 80s, but they are ‘bone chilling’ in the winter months.

Expedition 43 Commander Terry Virts of NASA, Flight Engineers Anton Shkaplerov of the Russian Federal Space Agency (Roscosmos) and Samantha Cristoforetti of ESA (European Space Agency) touched down at 9:44 a.m. EDT (7:44 p.m., Kazakh time), southeast of the remote town of Dzhezkazgan in Kazakhstan. Credits: NASA TV

The Expedition 43 flight was extended at the last minute due to the surprise launch failure of a Russian rocket carrying a station bound Progress resupply ship in late April.

The Progress 59 cargo vessel, also known as Progress M-27M, spun wildly out of control as it separated from the Soyuz-2.1A carrier rocket. The freighter and all its 2.5 tons of contents fpr the crew were destroyed during an uncontrolled plummet as its crashed back to Earth on May 8.

The Soyuz/Progress 59 failure had far reaching consequences and resulted in a postponement of virtually all Russian crew and cargo flights to the ISS for the remainder of 2015, as announced this week by Roscosmos, the Russian Federal Space Agency.

One result is that Cristoforetti now holds the single mission record for a female astronaut, of nearly 200 days.

Expedition 43 was extended by about a month in the wake of the launch failure of the Progress 59 cargo vessel, which quickly cascaded into an extended mission from its originally planned length of about 170 days to 199+ days.

The Soyuz is only certified to stay on orbit for 200 days. So the return home delayed as much as possible to minimize the time when the ISS reverts to only a three person crew – and consequently reduced time for research.

This past weekend on June 6, Cristoforetti surpassed the female astronaut record of 194 days, 18 hours and 2 minutes established by NASA astronaut Sunita Williams on a prior station flight back in 2007.

Cristoforetti, of the European Space Agency (ESA), is on her first ever space flight also counts as she also counts as Italy’s first female astronaut.

The station departure and parachute assisted soft landing was shown during a live webcast on NASA TV.

“The landing was on time and on target after over 199 days in space,” said NASA commentator Rob Navius.

“Everything went by the book for an on target touchdown. The crew is safely back on Earth!”

Flight Engineer Samantha Cristoforetti of the European Space Agency in Star Trek uniform as SpaceX Dragon arrives at the International Space Station on April 17, 2015. Credit: NASA

In the final stages of the return to Earth, the Soyuz descent module glided down safely using a single mammoth orange and white parachute, aided by braking rockets in the final moments just a few feet above ground.

The Soyuz landed upright, which eased the extraction of the crew. Russian recovery team members hoisted all three up and out from the cramped capsule.

Soyuz commander Anton Shkaplerov was hauled up first, followed by Samantha Cristoforetti and finally Terry Virts.

All three crewmembers were healthy and happy, each signaling their elation with a joyous ‘thumbs up.’

After preliminary medical checks, the crew were flown by helicopter to a staging base at Karaganda. From there they split up. Shkaplerov heads back to Moscow and Star City. Cristoforetti and Virts fly to Mission Control in Houston.

During their time aloft, the crew completed several critical spacewalks, technology demonstrations, and hundreds of scientific experiments spanning multiple disciplines, including human and plant biology,” according to NASA.

Among the research experiments conducted were “participation in the demonstration of new, cutting-edge technologies such as the Synthetic Muscle experiment, a test of a new polymer that contracts and expands similar to real muscle. This technology has the potential for future use on robots, enabling them to perform tasks that require considerable dexterity but are too dangerous to be performed by humans in space.”

“The crew engaged in a number of biological studies, including one investigation to better understand the risks of in-flight infections and another studying the effects microgravity has on bone health during long-duration spaceflight. The Micro-5 study used a small roundworm and a microbe that causes food poisoning in humans to study the risk of infectious diseases in space, which is critical for ensuring crew health, safety and performance during long-duration missions. The Osteo-4 study investigated bone loss in space, which has applications not only for astronauts on long-duration missions, but also for people on Earth affected by osteoporosis and other bone disorders.”

Three cargo flights also arrived at the ISS carrying many tons of essential supplies, research equipment, science experiments, gear, spare parts, food, water, clothing.

The resupply freighters included the Russian Progress in February 2015 as well as two SpaceX Dragon cargo ships on the CRS-5 and CRS-6 flights in January and April.

Expedition 43 commander Terry Virts of NASA, left, cosmonaut Anton Shkaplerov of the Russian Federal Space Agency (Roscosmos), center, and Italian astronaut Samantha Cristoforetti from European Space Agency (ESA) sit in chairs outside the Soyuz TMA-15M spacecraft just minutes after they landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, June 11, 2015. Virtz, Shkaplerov, and Cristoforetti are returning after more than six months onboard the International Space Station where they served as members of the Expedition 42 and 43 crews. Photo Credit: (NASA/Bill Ingalls) — Expedition 43 commander Terry Virts of NASA, left, cosmonaut Anton Shkaplerov of the Russian Federal Space Agency (Roscosmos), center, and Italian astronaut Samantha Cristoforetti from European Space Agency (ESA) sit in chairs outside the Soyuz TMA-15M spacecraft just minutes after they landed in a remote area near the town of Zhezkazgan, Kazakhstan on Thursday, June 11, 2015. Virts, Shkaplerov, and Cristoforetti are returning after more than six months onboard the International Space Station where they served as members of the Expedition 42 and 43 crews. Photo Credit: (NASA/Bill Ingalls)

With the return of Virts crew, the new Expedition 44 begins and comprises NASA astronaut Scott Kelly and Russian cosmonauts Mikhail Kornienko, the two members of the first “ISS 1 Year Mission” as well as cosmonaut Gennady Padalka.

Padalka now assumes command of the station for a record setting fourth time. And he’ll soon be setting another record. In late June, he will break the all time record for cumulative time in space currently held by cosmonaut Sergei Krikalev of 803 days on six space flights.

When Padalka returns to Earth around September 10 in the Soyuz TMA-16M ship, that brought the 1 Year crew to the ISS, he will have been in space for a grand total of over 877 days over five flights.

The next cargo ferry flight involves NASA’s next contracted unmanned Dragon cargo mission by commercial provider SpaceX on the CRS-7 flight.

Dragon CRS-7 is now slated for liftoff on June 26. Watch for my onsite reports from KSC.

The Dragon will be carrying critical US equipment, known as the International Docking Adapter (IDA), enabling docking by the SpaceX Crew Dragon and Boeing CST-100 astronaut transporters – due for first crewed launches in 2017.

The most recent unmanned Dragon cargo CRS-6 mission concluded with a Pacific Ocean splashdown on May 21.

The International Space Station, photographed by the crew of STS-132 as they disembarked. Credit: NASA

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer

Expedition 43 crews rests post landing on Thursday, June 11, 2015, Terry Virts of NASA, comprising cosmonaut Anton Shkaplerov of the Russian Federal Space Agency (Roscosmos), and record setting Italian astronaut Samantha Cristoforetti from European Space Agency (ESA). Credit: NASA

June 9, 2015December 23, 2015 by Ken Kremer

Longest Woman Spaceflyer to Return as Russia Reshuffles Station Launches After Rocket Failure

The longest space mission in history by a female astronaut is now set to conclude on Thursday, following Russia’s confirmation of a significant reshuffling of the crew and cargo flight manifest to the International Space Station (ISS) for the remainder of 2015 – all in the wake of the unexpected Russian launch failure of a station bound Progress resupply ship in late April with far reaching consequences.

The record setting flight of approximately 200 days by Italian spaceflyer Samantha Cristoforetti, along with her two Expedition 43 crewmates, will come to an end on Thursday, June 11, when the trio are set to undock and depart the station aboard their Russian Soyuz crew capsule and return back to Earth a few hours later.

NASA TV coverage begins at 6 a.m. EDT on June 11.

Roscosmos, the Russian Federal Space Agency, officially announced today, June 9, a revamped schedule changing the launch dates of several upcoming crewed launches this year to the Earth orbiting outpost.

Launch dates for the next three Progress cargo flights have also been adjusted.

The next three person ISS crew will now launch between July 23 to 25 on the Soyuz TMA-17M capsule from the Baikonur cosmodrome in Kazakhstan. The exact timing of the Expedition 44 launch using a Russian Soyuz-FG booster is yet to be determined.

Soon after the Progress mishap, the Expedition 43 mission was extended by about a month so as to minimize the period when the ISS is staffed by only a reduced crew of three people aboard – since the blastoff of the next crew was simultaneously delayed by Roscosmos by about two months from May to late July.

Indeed Cristoforetti’s endurance record only came about as a result of the very late mission extension ordered by Roscosmos, so the agency could investigate the root cause of the recent launch failure of the Russian Progress 59 freighter that spun wildly out of control soon after blastoff on April 28 on a Soyuz-2.1A carrier rocket.

Roscosmos determined that the Progress failure was caused by an “abnormal separation of the 3rd stage and the cargo vehicle” along with “associated frequency dynamic characteristics.”

The Expedition 43 crew comprising of Cristoforetti, NASA astronaut and current station commander Terry Virts, and Russian cosmonaut Anton Shkaplerov had been scheduled to head back home around May 13. The trio have been working and living aboard the complex since November 2014.

The 38-year old Cristoforetti actually broke the current space flight endurance record for a female astronaut during this past weekend on Saturday, June 6, when she eclipsed the record of 194 days, 18 hours and 2 minutes established by NASA astronaut Sunita Williams on a prior station flight back in 2007.

Cristoforetti, of the European Space Agency (ESA), also counts as Italy’s first female astronaut.

The Progress 59 cargo vessel, also known as Progress M-27M, along with all its 2.5 tons of contents were destroyed during an uncontrolled plummet back to Earth on May 8.

NASA astronaut Terry Virts (left) Commander of Expedition 43 on the International Space Station along with crewmates Russian cosmonaut Anton Shkaplerov (center) and ESA (European Space Agency) astronaut Samantha Cristoforetti on May 6, 2015 perform a checkout of their Russian Soyuz spacesuits in preparation for the journey back to Earth - now set for June 11, 2015. Credits: NASA — NASA astronaut Terry Virts (left) Commander of Expedition 43 on the International Space Station along with crewmates Russian cosmonaut Anton Shkaplerov (center) and ESA (European Space Agency) astronaut Samantha Cristoforetti on May 6, 2015 perform a checkout of their Russian Soyuz spacesuits in preparation for the journey back to Earth – now set for June 11, 2015. Credits: NASA

Roscosmos announced that they are accelerating the planned launch of the next planned Progress 60 (or M-28M) from August 6 up to July 3 on a Soyuz-U carrier rocket, which is different from the problematic Soyuz-2.1A rocket.

Following the Soyuz crew launch in late July, the next Soyuz will blastoff on Sept. 1 for a 10 day taxi mission on the TMA-18M capsule with cosmonaut Sergei Volkov and ESA astronaut Andreas Mogensen. After British opera singer Sarah Brightman withdrew from participating as a space tourist, a new third crew member will be named soon by Roscosmos.

The final crewed Soyuz of 2015 with the TMA-19M capsule has been postponed from Nov. 20 to Dec. 15.

Also in the mix is the launch of NASA’s next contracted unmanned Dragon cargo mission by commercial provider SpaceX on the CRS-7 flight. Dragon CRS-7 is now slated for liftoff on June 26. Watch for my onsite reports from KSC.

The most recent unmanned Dragon cargo CRS-6 mission concluded with a Pacific Ocean splashdown on May 21.

The Dragon will be carrying critical US equipment, known as the IDA, enabling docking by the SpaceX Crew Dragon and Boeing CST-100 astronaut transporters – due for first crewed launches in 2017.

ESA (European Space Agency) astronaut Samantha Cristoforetti enjoys a drink from the new ISSpresso machine. The espresso device allows crews to make tea, coffee, broth, or other hot beverages they might enjoy. Credit: NASA

NASA astronaut Scott Kelly and Russian cosmonauts Mikhail Kornienko and Gennady Padalka will remain aboard the station after the Virts crew returns to begin Expedition 44.

Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.

Ken Kremer