Space Exploration Archives

April 18, 2014December 23, 2015 by Ken Kremer

NASA’s Highly Productive LADEE Dust Explorer Probe Crashes into the Moon as Planned

NASA’s LADEE lunar orbiter will firing its main engine on Oct. 6 to enter lunar orbit in the midst of the US government shutdown. Credit: NASA

NASA’s LADEE lunar orbiting dust and atmosphere explorer probe has bitten the dust and crashed into the Moon’s surface exactly as planned following a fabulously successful and groundbreaking science mission that exceeded all expectations.

The Lunar Atmosphere and Dust Environment Explorer (LADEE) spacecraft impacted the far side of the Moon sometime overnight between 12:30-1:22 a.m. EDT, Friday, April 18 (9:30 and 10:22 p.m. PDT, Thursday, April 17) according to a NASA statement.

Running low on fuel and unable to continue any further science observations, the couch sized spacecraft was intentionally plunged into the rugged lunar surface at a spot designed to keep it far away from disturbing any of the historic Apollo manned lunar landing sites or unmanned surveyors on the Moon’s near side.

Mission controllers at NASA’s Ames Research Center allowed LADEE’s orbit to naturally decay following the conclusion of the probes extended mission in the final low orbit science phase.

The probe was likely smashed violently to smithereens and mostly vaporized from the heat generated upwards of several hundred degrees. Any surviving debris may be buried in shallow crater formed by the impact.

“At the time of impact, LADEE was traveling at a speed of 3,600 miles per hour – about three times the speed of a high-powered rifle bullet,” said Rick Elphic, LADEE project scientist at Ames, in a NASA statement.

“There’s nothing gentle about impact at these speeds – it’s just a question of whether LADEE made a localized craterlet on a hillside or scattered debris across a flat area. It will be interesting to see what kind of feature LADEE has created.”

The powerful NAC telescopic camera aboard NASA’s still orbiting Lunar Reconnaissance Orbiter (LRO) will be directed in coming months to try and photograph the impact site after engineers pinpoint the likely crash site.

LRO has already imaged LADEE while both were co-orbiting in different lunar orbits.

This dissolve animation compares the LRO image (geometrically corrected) of LADEE captured on Jan 14, 2014 with a computer-generated and labeled image of LADEE . LRO and LADEE are both NASA science spacecraft currently in orbit around the Moon. Credit: NASA/Goddard/Arizona State University

After completing its primary science mission in March, the already ultra low altitude of the lunar orbiting probe was reduced even further so that it was barely skimming just 2 kilometers (1 mile) above the pockmarked lunar surface.

Such a low altitude thus enabled LADEE to gather unprecedented science measurements of the Moon’s extremely tenuous atmosphere and dust particles since the species would be present at a higher concentration.

Lots of fuel is required to maintain LADEE’s orbit due to the uneven nature of the Moon’s global gravity field.

The final engine firing was commanded on April 11 to ensure a far side impact and the safety of all the historic lunar landing sites.

“LADEE also survived the total lunar eclipse on April 14 to 15. This demonstrated the spacecraft’s ability to endure low temperatures and a drain on batteries as it, and the moon, passed through Earth’s deep shadow,” said NASA

LADEE was launched on Sept. 6, 2013 from NASA Wallops in Virginia on a science mission to investigate the composition and properties of the Moon’s pristine and extremely tenuous atmosphere, or exosphere, and untangle the mysteries of its lofted lunar dust dating back to the Apollo Moon landing era.

All those objectives and more were accomplished during its nearly half year investigating Earth’s nearest neighbor.

Launch of NASA’s LADEE lunar orbiter on Friday night Sept. 6, at 11:27 p.m. EDT on the maiden flight of the Minotaur V rocket from NASA Wallops, Virginia, viewing site 2 miles away. Antares rocket launch pad at left. Credit: Ken Kremer/kenkremer.com

It entered lunar orbit on Oct. 6, 2013 amidst the ridiculous government shutdown that negatively affected a number of science missions funded across the US federal government.

The science mission duration had initially been planned to last approximately 100 days and finish with a final impact on the Moon on about March 24th.

NASA granted LADEE a month long extension since the residual rocket fuel was more than anticipated due to the expertise of LADEE’s navigation engineers and the precision of the launch atop the Orbital Sciences Minotaur V rocket and orbital insertion.

“It’s bittersweet knowing we have received the final transmission from the LADEE spacecraft after spending years building it in-house at Ames, and then being in constant contact as it circled the moon for the last several months,” said Butler Hine, LADEE project manager at Ames.

The 844 pound (383 kg) robot explorer was assembled at NASA’s Ames Research Center, Moffett Field, Calif., and is a cooperative project with NASA Goddard Spaceflight Center in Maryland.

The $280 million probe is built on a revolutionary ‘modular common spacecraft bus’, or body, that could dramatically cut the cost of exploring space and also be utilized on space probes to explore a wide variety of inviting targets in the solar system.

Stay tuned here for Ken’s continuing LADEE, Chang’e-3, Orion, Orbital Sciences, SpaceX, commercial space, Mars rover and more planetary and human spaceflight news.

Ken Kremer

Full scale model of NASA’s LADEE lunar orbiter on display at the free visitor center at NASA’s Wallops Flight Facility in Virginia. Credit: Ken Kremer/kenkremer.com

April 18, 2014December 23, 2015 by Elizabeth Howell

Urgent Spacewalk Must Dance Between Dragon and Progress Spacecraft

NASA astronaut Steve Swanson does a spacesuit fit check prior to the launch of Expedition 39 in March 2014. Credit: NASA

It’s a good thing that next week’s urgent spacewalk is pegged as a short one, because the coming days will be hectic for the Expedition 39 crew.

Finding a spot for even a 2.5-hour excursion on the International Space Station was extremely challenging, NASA officials said in a news conference today (April 18), because crew time also is needed for two cargo spacecraft: the SpaceX Dragon launch scheduled for today and subsequent Progress undocking/redocking on station.

Here’s a rundown of some things NASA was juggling as it moves hastily to replace a failed backup computer on the outside of the station. Rick Mastracchio and Steve Swanson are expected to go “outside” on Wednesday (April 23), but if today’s SpaceX launch is delayed the spacewalk will be moved up to Sunday (April 20).

Why it’s urgent

The U.S. portion of the station has 46 computers, with 24 of them external. The multiplexer/demultiplexer or MDM (one of two) controls 12 of these external computers and is responsible for everything for how the solar arrays are pointed to how some robotics operate. It should be noted here that the primary MDM is working just fine, but if it fails with no backup, there will be problems. NASA will lose telemetry or data from the external ammonia cooling systems operating on station (although the systems themselves will work automatically). Some redundant equipment can’t be turned on, either. The agency also won’t be able to point the solar arrays to get power or to move them aside when spacecraft come in, to protect the arrays from thruster plumes (although further below you can see some backups they have for the array problems.)

NASA astronaut Mike Hopkins during a contingency spacewalk in December 2013 to replace a faulty ammonia pump. Hopkins was part of Expedition 37/38. Credit: NASA

Fixing the spacesuits

Since last summer’s life-threatening water leak, NASA has been moving quickly to fix the spacesuits it has. All non-urgent spacewalks are off the table until at least this summer while NASA addresses a panel’s recommendations to fix the problem. A faulty fan pump separator was swapped out on the bad suit (Suit 3011) last December, but two spacesuits still needed to be fixed on station. The crew spent much of the past week changing out a fan pump separator on Suit 3005 (which will also be used in the spacewalk) and flushing out the cooling lines in the suit and on station, since contamination is believed to have led to the failure. (More parts will arrive on Dragon, but they won’t be used this time, NASA has determined.)

Spacewalk preps on the ground

Also today, NASA astronaut Chris Cassidy was in “the pool” (at NASA’s Neutral Buoyancy Laboratory) simulating the spacewalk. He’s part of a team working to see what could go wrong on the spacewalk and come up with procedures dealing with that. “As best we can we have all those answers in our hip pockets so as they get thrown out on the game day, we can give the crew a quick answer,” he said in an interview Wednesday (April 16) on NASA TV.

Preparing the new computer

A spare MDM is inside the station, but it was an older model that needed to be reconfigured. Astronauts changed out a processing card and did other hardware/software changes to prepare the MDM to sit outside of the station. They also thoroughly tested it to make sure it’s working before mounting it outside. As a point of interest, no one yet knows why the backup MDM failed, but astronauts will inspect the site for damage (and take pictures). It’s expected that once they bring the broken MDM inside, any failed cards will be swapped out and sent to the ground sometime for analysis. The MDM itself will stay on station to be used again, as needs arise.

SpaceX's Dragon spacecraft berthed to the International Space Station during Expedition 33 in October 2012. Credit: NASA — SpaceX’s Dragon spacecraft berthed to the International Space Station during Expedition 33 in October 2012. Credit: NASA

Grappling Dragon

SpaceX’s Dragon is a cargo spacecraft controlled by the ground, but the astronauts need to be ready to nab it with the robotic Canadarm2 once it arrives (now scheduled for Sunday, April 20). The crew has their normal amount of training and preparation for the procedures, then the time it takes to capture the spacecraft, and then the time to unload the vehicle (which is somewhat urgent as there are certain research experiments that need to come off fairly quickly, NASA said.)

Moving the solar array

NASA not only needs to have the solar arrays out of the way from thruster plumes from Dragon and Progress, but it also needs to keep power to the station and configure the arrays so that if the other MDM fails, the arrays will automatically be placed in a safe spot. The array would autotrack for 24 hours after the MDM fails, then go to a “preset angle” that NASA carefully chose. As for whether there would be power shortages on station, NASA says it depends on the sun’s angle and what needs to be done on station at a particular time.

Moving the Progress spacecraft

Russian cargo ship Progress 53 is supposed to undock from the Zvezda service module on Wednesday (April 23) to test an automated rendezvous system that controls approaches to station. Then it’s docking again on Friday (April 25).

Unless otherwise noted, information in this article is based on comments from the following officials in today’s NASA news conference: Mike Suffredini, International Space Station program manager; Brian Smith, International Space Station flight director and Glenda Brown, lead spacewalk officer.

April 17, 2014December 23, 2015 by Ken Kremer

SpaceX Dragon launch to ISS Marches Towards April 18 Liftoff after Helium Leak Forces Scrub – Watch Live

The Falcon 9 and Dragon capsule stand ready for launch prior to the detection of a helium leak in one of the engines forcing a scrub of the launch attempt on April 14. 2014 - now reset to April 18, 2014. Credit: nasatech.net

NASA and SpaceX are marching forward towards a Friday, April 18 liftoff attempt for the Falcon 9 rocket sending a commercial Dragon cargo craft on the company’s third resupply mission to the International Space Station following the scrubbed launch attempt on Monday, April 14 – forced by the discovery of a Helium gas leak inside the rocket during the latter stages of the countdown.

An on time blastoff of the upgraded Falcon 9 sets the stage for an Easter Sunday rendezvous and berthing of the Dragon resupply spacecraft at the massive orbiting outpost packed with almost 5000 pounds of science experiments and supplies for the six person crew.

However the weather prognosis is rather iffy for Friday afternoons launch attempt at 3:25:21 p.m. EDT from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida.

Forecasters predict only a 40 percent “GO” of acceptable weather conditions at the appointed liftoff time of the SpaceX-3 mission – roughly the time when the Earth’s rotation moves the rocket into the plane of the space stations orbit.

Remote cameras set up at SpaceX Falcon 9 launch pad 40 at Cape Canaveral. Adorned with patch - Space for America’s Economic Growth. Credit: Nicole Solomon — Remote cameras set up at SpaceX Falcon 9 launch pad 40 at Cape Canaveral. Adorned with patch – Space for America’s Economic Growth. Credit: Nicole Solomon

Meteorologists with the U.S. Air Force 45th Weather Squadron are predicting a significant chance of rain showers and thunderstorms in the Florida Space coast launch area that could violate three launch rules, namely the Thick Cloud, Lightning and Flight Through Precipitation rules.

In the event of a scrub for any reason on Friday, NASA, SpaceX and Air Force managers approved another backup launch opportunity on Saturday, April 19 at 3:02:42 p.m.

The weather outlook for a Saturday liftoff improves somewhat to 60 percent “GO”.

Originally, Monday and Friday were the only available launch target dates this week.

Assuming a successful Falcon 9 launch on Friday, station crew members Rick Mastracchio and Steven Swanson will grapple the Dragon cargo freighter with the 57 foot long Canadarm2 on Easter Sunday morning, April 20, at 7:14 a.m. at then berth it at the Earth-facing port of the Harmony module.

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

NASA TV live coverage will begin at at 2:15 p.m. EDT

SpaceX live launch coverage begins at 2:45 p.m. ET: Webcast at www.spacex.com/webcast

NASA TV coverage of the Easter Sunday grappling process will begin at 5:45 a.m. with berthing coverage beginning at 9:30 a.m. : http://www.nasa.gov/ntv

Monday’s launch attempt was scrubbed about an hour before liftoff when SpaceX mission controllers and engineers detected that a helium valve in the pneumatic system for stage separation between the first and second stages was not holding the specified pressure.

The success of the mission was therefore dependent on the perfect operation of a backup check valve for the stage separation pistons.

Although no technical issues were detected with the backup valve, the anamolous situation violated SpaceX launch rules.

“SpaceX policy is not to launch with any known anomalies,” said SpaceX in a statement.

A SpaceX Falcon 9 rocket with Dragon cargo capsule bound for the ISS is slated to launch on April 18, 2014 from Space Launch Complex 40 at Cape Canaveral, FL. File photo. Credit: Ken Kremer/kenkremer.com

The erect Falcon 9 was lowered back to the horizontal position so that SpaceX engineers could swap out the faulty helium valve, as well as conduct a complete inspection of the rocket to look for signs of any other issues that may have contributed to the valve not working as designed, said SpaceX.

This unmanned SpaceX mission dubbed CRS-3 will deliver some 5000 pounds of science experiments, a pair of hi tech legs for Robonaut 2, a high definition imaging camera suite, an optical communications experiment (OPALS) and essential gear, the VEGGIE lettuce growing experiment, spare parts, crew provisions, food, clothing and supplies to the six person crews living and working aboard the ISS soaring in low Earth orbit under NASA’s Commercial Resupply Services (CRS) contract.

To date SpaceX has completed two operational cargo resupply missions and a test flight. The last flight dubbed CRS-2 blasted off a year ago on March 1, 2013 atop the initial version of the Falcon 9 rocket.

NASA awarded contracts to SpaceX and competitor Orbital Sciences to develop unmanned cargo freighters via CRS to restore US capability to resupply the ISS following the shutdown of the space shuttle program in 2011.

SpaceX is under contract to NASA to deliver 20,000 kg (44,000 pounds) of cargo to the ISS during a dozen Dragon cargo spacecraft flights through 2016 at a cost of about $1.6 Billion.

The next launch of Orbital Sciences Antares/Cygnus commercial rocket to the ISS from NASA Wallops, VA, is tentatively slated for May 6. But the target date hinges on when this SpaceX-3 mission actually flies and could slip into mid-June.

Stay tuned here for Ken’s continuing SpaceX, Orbital Sciences, commercial space, Orion, Chang’e-3, LADEE, Mars rover, MAVEN, MOM and more planetary and human spaceflight news.

Ken Kremer

April 16, 2014December 23, 2015 by Ken Kremer

SpaceX Leases Historic Launch Complex 39A from NASA for new Era of Commercial Space Launches

NASA Administrator Charlie Bolden, left, Gwynne Shotwell, president and chief operating officer of SpaceX and Kennedy Space Center Director Bob Cabana announce that NASA just signed a lease agreement with SpaceX of Hawthorne, Calif., for use and operation of NASA’s KSC Launch Complex 39A. Credit: Nicole Solomon

The keys to NASA’s historic launch Pad 39A that propelled humanity’s first man to walk on the Moon – Neil Armstrong – during the history making flight of Apollo 11, have been handed over to new owners, namely the private aerospace firm SpaceX for a new purpose – serving as a commercial launch facility.

NASA and Space Exploration Technologies Corporation (SpaceX) of Hawthorne, Calif., have just signed an agreement giving SpaceX rights to occupy and operate seaside Launch Complex 39A at the Kennedy Space Center (KSC) in Florida.

SpaceX was founded by billionaire, entrepreneur and space visionary Elon Musk.

SpaceX aims to give the now dormant pad a new lease on life in the emerging New Space era by revitalizing it as a commercial launch site for the company’s mammoth new Falcon Heavy rocket, currently under development, as well as for manned launches of the firm’s human rated Dragon spacecraft atop the Falcon 9 according to Gwynne Shotwell, president of SpaceX.

“We’ll make great use of this pad, I promise,” Shotwell told reporters at a briefing at the pad.

The liquid fueled Falcon Heavy will be the most powerful rocket in the world according to SpaceX, generating generating nearly four million pounds of liftoff thrust from 27 engines and thus significantly exceeding the power of the Delta IV Heavy manufactured by competitor United Launch Alliance.

Shotwell said renovations to pad 39A would start later this year. The maiden SpaceX launch from the complex is expected next year.

“We will launch the Falcon Heavy from here from this pad early next year,” Shotwell stated.

The SpaceX Dragon is one of three commercial crew vehicles being developed under a public-private partnership with NASA to ferry US astronauts to the International Space Station (ISS) and restore America’s human spaceflight capability lost since the shuttle’s retirement.

The Boeing CST-100 and Sierra Nevada Dream Chaser are also vying for the next round of private ‘space taxi’ funding from NASA.

Pad 39A has been inactive and mothballed since the last shuttle mission, STS-135, thundered to space in July 2011.

Not a single rocket has rolled up the ramp at KSC in nearly 3 years.

NASA’s 135th and final shuttle mission takes flight on July 8, 2011 at 11:29 a.m. from the Kennedy Space Center in Florida bound for the ISS and the high frontier. Credit: Ken Kremer/kenkremer.com — NASA’s 135th and final shuttle mission takes flight on July 8, 2011 at 11:29 a.m. from the Kennedy Space Center in Florida bound for the ISS and the high frontier.
Credit: Ken Kremer/kenkremer.com

The new lease agreement was signed by NASA and SpaceX officials and announced onsite at Pad 39 at the briefing.

“Today this historic site from which numerous Apollo and space shuttle missions began and from which I first flew and left the planet on STS-61C on Columbia, is beginning a new mission as a commercial launch site,” said NASA Administrator Charles Bolden.

“While SpaceX will use pad 39A at Kennedy, about a mile away on pad 39B, we’re preparing for our deep space missions to an asteroid and eventually Mars. The parallel pads at Kennedy perfectly exemplify NASA’s parallel path for human spaceflight exploration — U.S. commercial companies providing access to low-Earth orbit and NASA deep space exploration missions at the same time.”

Under terms of the new agreement with NASA, the lease with SpaceX spans 20 years.

“It’s exciting that this storied NASA launch pad is opening a new chapter for space exploration and the commercial aerospace industry,” said Bolden.

SpaceX will also maintain and operate Pad 39A at its own expense, with no US federal funding from NASA.

Pad 39A will be SpaceX’s third launch site. The company also launches its Falcon 9 rockets from nearby Pad 40 on Cape Canaveral Air Force Station and a west coast pad on Vandenberg Air Force Base, Calif.

Launch Pad 39A has lain dormant save dismantling since the final shuttle launch on the STS-135 mission in July 2011. Not a single rocket has rolled up this ramp in nearly 3 years. SpaceX has now leased Pad 39A from NASA and American rockets will thunder aloft again with Falcon rocket boosters starting in 2015. Credit: Ken Kremer/kenkremer.com — Launch Pad 39A has lain dormant save dismantling since the final shuttle launch on the STS-135 mission in July 2011. Not a single rocket has rolled up this ramp at the Kennedy Space Center in nearly 3 years. SpaceX has now leased Pad 39A from NASA and American rockets will thunder aloft again with Falcon rocket boosters starting in 2015. Credit: Ken Kremer/kenkremer.com

The next Falcon 9 liftoff with an unmanned Dragon cargo freighter is currently slated from Friday, April 18 following Monday’s scrub.

NASA determined that the agency no longer has a use for pad 39A since the end of the shuttle era and has been looking for a new tenant to take over responsibility and pay for maintenance of the launch complex. The agency awarded the lease to SpaceX in December 2013.

Instead, NASA decided to completely upgrade, renovate and modernize Pad 39As twin, namely Launch Pad 39B, and invested in converting it into a 21st Century launch complex.

NASA will use Pad 39B to launch the state of the art Orion crew vehicle atop the new Space Launch System (SLS) booster for voyages beyond Earth and taking humans back to the vicinity of the Moon and further out on deep space missions to Asteroids, Mars and beyond.

The first unmanned SLS test flight from Pad 39B is slated for late 2017.

Pad 39A was an active NASA launch pad for nearly 35 years starting back near the dawn of the Space Age in the 1960s.

Apollo 4, the first flight of a Saturn V launch vehicle, rises from Launch Pad 39A. Credit: NASA

Apollo 4 was the first NASA booster to blast off from Pad 39A on Nov. 9, 1967 during the historic inaugural test flight of the Saturn V moon rocket that eventually served to dispatch all six US manned lunar landing missions.

The closing NASA use of Pad 39A took place on July 8, 2011 with the launch of STS-135 and orbiter Atlantis on the final flight of the space shuttle era.

The four person STS-135 crew delivered the last US pressurized module to the massive low-Earth orbiting ISS.

No Americans have launched to space from American soil since STS-135.

Launch Complex 39 was originally constructed to launch the Apollo moon landing missions atop NASA’s Saturn V booster in the 1960s and 1970s. Both pads were later modified to support the Space Shuttle program whose first launch took place in 1981 from pad 39A.

“Kennedy Space Center is excited to welcome SpaceX to our growing list of partners,” Center Director Bob Cabana said. “As we continue to reconfigure and repurpose these tremendous facilities, it is gratifying to see our plan for a multi-user spaceport shared by government and commercial partners coming to fruition.”

Stay tuned here for Ken’s continuing SpaceX, Orbital Sciences, commercial space, Orion, Chang’e-3, LADEE, Mars rover, MAVEN, MOM and more planetary and human spaceflight news.

Ken Kremer

Gwynne Shotwell, president of SpaceX, celebrates lease agreement for use and operation of NASA’s KSC Launch Complex 39A in Florida. Credit: Nicole Solomon

April 15, 2014December 23, 2015 by Elizabeth Howell

Shiny: Astronaut Wears ‘Firefly’ T-Shirt In First Instagram From Space

"Back on ISS, life is good," wrote NASA astronaut Steve Swanson on April 7, 2014 in the first Instagram from space. Swanson is wearing a T-shirt from the TV space show 'Firefly' that says "Shipping & Logistics: Everything's Shiny" around a smaller circle reading "Serenity: Est. 2459." Credit: NASA/Instagram

And now, time for some thrilling heroics. NASA astronaut Steve Swanson sent out the first Instagram from space last week wearing none other than a Firefly T-shirt. There’s something to be said about a space-faring guy evoking images of Captain Mal doing the impossible in the plucky Serenity spaceship, isn’t there?

We’re happy the epicness did not break NASA’s Instagram feed, as Swanson has been sending out pictures regularly since then showing the view from orbit (he joked about wanting a vacation at one point) as well as another selfie. You can check out the magic below, and follow the rest on NASA’s Instagram feed. We’ve copied and pasted Swanson’s captions below each image.

During Swanson’s first mission to space in 2007, STS-117, he brought with him the DVD set of Firefly and its movie spinoff, Serenity, and left it on the International Space Station library, according to collectSPACE.

Oh, and social media from space is also being covered on Twitter, via Expedition 39 NASA astronaut Rick Mastracchio and Koichi Wakata, from the Japan Aerospace Exploration Agency.

“The Turks and Caicos islands – I think I need to go there after this mission.” – Swanny #exp39 #earth #iss #international #space #station #nasa #vacation #earthrightnow

“Blood, sweat, but hopefully no tears.” – Swanny #nasa #iss #exp39 #international #space #station #blood #sweat #tears #medical

“Cape Canaveral – looking forward to when the US launches out of here again.” – Swanny #iss #exp39 #earth #florida #capecanaveral #international #space #station #launch #atlantic #coast #nasa

“The Maldive Islands” – Swanny #exp39 #iss #international #space #station #earth #earthrightnow #maldives #island

“The Northern Lights, while over Europe.” – Swanny #exp39 #nasa #iss #international #space #station #earth #europe #night #aurora

April 15, 2014December 23, 2015 by Elizabeth Howell

Handy! 3-D Printing Could Build Moon Bases And Improve Items Used In Space

Two 3-D replicas of a glove worn by European Space Agency astronaut Hans Schlegel. The one on right is lifesize and the other at one-tenth scale. The models were created "using fused deposition modelling of thermoplastic", ESA stated, at a mechanical workshop at the Netherlands' European Space Research and Technology Centre. Credit: ESA-Anneke Le Floc'h

Star Trek replicators, here we come. The European Space Agency has released a list of how 3-D printing could change space exploration forever. And lest you think this type of printing is far in the future, images like those disembodied hands above show you it’s come a long way. Those are 3-D replicas of a glove worn by European Space Agency astronaut Hans Schlegal.

The applications range from the small — making lighter valves, for example — to ambitious projects such as constructing a moon base. Below are some ESA images showing uses for 3-D printing, and if they’ve missed some, be sure to let us know in the comments.

Two valves -- which is the 3-D printed one? It's the one on the right. The original (left) is a water on-off valve (Woov) flown on the European Space Agency's Columbus module on the International Space Station. The replica is 40 percent less massive. Credit: ESA — Two valves — which is the 3-D printed one? It’s the one on the right. The original (left) is a water on-off valve (Woov) flown on the European Space Agency’s Columbus module on the International Space Station. The replica is 40 percent less massive. Credit: ESA

Artist's conception of a lunar dome based on 3-D printing. Credit: ESA/Foster + Partners — Artist’s conception of a lunar dome based on 3-D printing. Credit: ESA/Foster + Partners

A 3-D printed showerhead injector that apparently saves on time in the normal manufacturing process: usually it takes "more than 100 separate welds to produce", according to the European Space Agency. The holes, however, are made by secondary processing. Credit: ESA — A 3-D printed showerhead injector that apparently saves on time in the normal manufacturing process: usually it takes “more than 100 separate welds to produce”, according to the European Space Agency. The holes, however, are made by secondary processing. Credit: ESA

A closeup of a titanium lattice ball made using a 3-D printer. According to the European Space Agency, the hollow spheres have a "complex external geometry" that cannot be made with the usual manufacturing processes. Credit: ESA — A closeup of a titanium lattice ball made using a 3-D printer. According to the European Space Agency, the hollow spheres have a “complex external geometry” that cannot be made with the usual manufacturing processes. Credit: ESA

April 15, 2014December 23, 2015 by Elizabeth Howell

Why The Eclipse Forced A Shutdown Of Lunar Spacecraft’s Instruments

Lunar Reconnaissance Orbiter. Image Credit: NASA

While people across North America marvelled at the blood-red moon early this morning, some NASA engineers had a different topic on their minds: making sure the Lunar Reconnaissance Orbiter would survive the period of extended shadow during the eclipse.

LRO uses solar panels to get energy for its batteries, so for two passes through the Earth’s shadow it would not be able to get any sunlight at all. Tweets on the official account show all as well in the first few hours after the eclipse.

“The spacecraft will be going straight from the moon’s shadow to the Earth’s shadow while it orbits during the eclipse,” stated Noah Petro, LRO’s deputy project scientist at NASA’s Goddard Space Flight Center, in a release before the eclipse occurred.

“We’re taking precautions to make sure everything is fine,” Petro added. “We’re turning off the instruments and will monitor the spacecraft every few hours when it’s visible from Earth.”

LRO’s Twitter account asked “Who turned off the heat and lights?” during the eclipse, then reported a happy acquisition of signal after the shadow passed by. “AOS, and sunlight, sweet sunlight! My batteries are charging again before I make another trip to the lunar far side.”

Hear more about LRO’s eclipse journey in the video below. For more information, check out NASA’s LRO website. UPDATE, 10:28 a.m. EDT: NASA’s Lunar Atmosphere and Dust Environment Explorer (LADEE) spacecraft also is fine after the eclipse, according to its Twitter account.

April 14, 2014December 23, 2015 by Elizabeth Howell

How Not To Get Bored During A Year On Space Station

NASA astronaut Scott Kelly during Expedition 25 in 2010, floating with a bag of candy in the Unity node of the International Space Station. Credit: NASA

When planning for long-duration space travel, many people would think along the lines of not forgetting a towel or something of that nature. But we on Earth who are spoiled by the astounding pictures beamed from space must realize that even astronauts can get tired of looking at the same few walls for months at a time.

Scott Kelly is going to spend a year in space in 2015, and he highlighted boredom as one of the things he will need to fight against during his time on the International Space Station.

“There are things I will do a little bit differently with regards to pacing myself. You wouldn’t think this is true, but you do have to kind of stay entertained over that kind of period,” said Scott Kelly in a NASA interview late last week, which you can watch above.

“No matter how exciting that kind of things is, no matter how beautiful the Earth is, when you’re doing it for a year there is still the factor of trying to keep yourself engaged and interested.”

Kelly also highlighted some of the training challenges he will face being that he will be up there twice as long as the typical six-month space station mission. While it won’t take twice as long to do emergency training, he is required to do it with twice as many astronauts/cosmonauts because he will be working with four crews in space.

He also will train with two different Soyuz spacecraft commanders (which will add “complexity”, he noted) and have twice as much science to perform. That includes several “twin” studies where scientists will compare Kelly and his identical brother Mark, a four-time shuttle flyer who retired from the program in 2011.

Another lesson learned from his last six-month flight in 2010? “I know what I want to bring this time that I didn’t have last time,” Kelly said, although he didn’t elaborate on what those items are.

Kelly and Russian cosmonaut Mikhail Kornienko will begin their mission just under one year from now.

April 13, 2014December 23, 2015 by Ken Kremer

SpaceX Cargo Launch to Station “GO” for April 14 – Watch Live Here

SpaceX Falcon 9 rocket preparing for April 14, 2014 liftoff from Space Launch Complex 40 at the Cape Canaveral Air Force Station, Fla. Credit: Julian Leek
Watch the SpaceX Launch Live here – NASA TV link below[/caption]

Following closely on the heels of Thursday’s spectacular Atlas V rocket blastoff from Cape Canaveral and a last moment computer failure at the ISS over the weekend, an upgraded Space X Falcon 9 rocket is now poised to launch on Monday (April 14) and complete a double barreled salvo of liftoffs from the Florida Space Coast merely 4 days apart – if all goes well.

The SpaceX Falcon 9 rocket carrying a Dragon resupply freighter is slated to launch on Monday at 4:58 p.m. EDT, 2058 GMT, from Launch Complex 40 at the Cape Canaveral Air Force Station, Fla.

Update 4/14- 345 PM: Todays launch attempt scrubbed due to 1st stage Helium leak. Friday is earliest target date

This flight marks the third operational Dragon resupply mission to the 1 million pound International Space Station (ISS).

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

NASA TV live coverage will begin at 3:45 p.m. EDT and conclude at approximately 5:20 p.m.

Weather forecasters are predicting an 80 percent chance of favorable weather conditions at the scheduled liftoff time.

SpaceX Falcon 9 rocket preparing for April 14, 2014 liftoff from Space Launch Complex 40 at the Cape Canaveral Air Force Station, Fla. Credit: Julian Leek

Monday’s launch was temporarily put in doubt by the unexpected loss on Friday (April 11) of a backup computer command relay box called a multiplexer/demultiplexer (MDM) that resides in the station’s S0 truss.

The primary MDM continued to function normally.

The MDM’s provide commanding to the station’s external cooling system, Solar Alpha Rotary joints, Mobile Transporter rail car and insight into other truss systems.

It must function in order for the astronauts to use the robotic arm to grapple and berth the Dragon at a station docking port when it arrives on Wednesday, April 16, at about 7 a.m. EDT.

NASA managers held an extensive series of review meetings since Friday with ISS program managers, station partners, and SpaceX to exhaustively consider all possibilities and insure it was safe to fly the Dragon mission.

NASA gave the final go ahead after a readiness review this Sunday morning of managers, engineers and flight controllers.

ISS crew members will conduct a spacewalk to replace the failed MDM unit after the Dragon arrives.

This unmanned SpaceX mission dubbed CRS-3 mission will deliver some 5000 pounds of science experiments, a pair of hi tech legs for Robonaut 2, a high definition imaging camera suite, an optical communications experiment (OPALS) and essential gear, the VEGGIE lettuce growing experiment, spare parts, crew provisions, food, clothing and supplies to the six person crews living and working aboard the ISS soaring in low Earth orbit under NASA’s Commercial Resupply Services (CRS) contract.

Robonaut 2 engineering model equipped with new legs like those heading to the ISS on upcoming SpaceX CRS-3 launch were on display at the Kennedy Space Center Visitor Complex on March 15, 2014. Credit: Ken Kremer - kenkremer.com — Robonaut 2 engineering model equipped with new legs like those heading to the ISS on upcoming SpaceX CRS-3 launch were on display at the Kennedy Space Center Visitor Complex on March 15, 2014. Credit: Ken Kremer – kenkremer.com

This launch has already been postponed twice since mid-March.

The original March 16 launch target was postponed 2 days before liftoff due to contamination issues with insulation blankets located inside the unpressurized trunk section of Dragon.

The second postponement from March 30 occurred when an electrical short knocked out the critical Air Force tracking required to insure a safe launch from the Eastern Range in case the rocket veers off course towards populated ares and has to be destroyed in a split second.

SpaceX is under contract to NASA to deliver 20,000 kg (44,000 pounds) of cargo to the ISS during a dozen Dragon cargo spacecraft flights over the next few years at a cost of about $1.6 Billion.

The Falcon 9 rocket with landing legs in SpaceX’s hangar at Cape Canaveral, Fl, preparing to launch Dragon to the space station this Sunday March 30. Credit: SpaceX

Another major goal for SpaceX with this launch involves the attachment of landing legs to the first stage of the firm’s next-generation Falcon 9 rocket that counts as a major first step towards a future goal of building a fully reusable rocket.

For this Falcon 9 flight, the rocket will sprout legs for a controlled soft landing in the Atlantic Ocean, guided by SpaceX engineers.

Eventually SpaceX will test land landings in a ramped up series of rocket tests

Stay tuned here for Ken’s continuing SpaceX, Orbital Sciences, commercial space, Orion, Chang’e-3, LADEE, Mars rover, MAVEN, MOM and more planetary and human spaceflight news.

Ken Kremer

April 13, 2014December 23, 2015 by Elizabeth Howell

Contingency Spacewalk Planned Next Week, But Dragon Must Arrive At Space Station First

NASA astronaut Greg Chamitoff during a 2011 spacewalk on the International Space Station. Reflected in his visor is NASA crewmate Mike Fincke. Both astronauts were mission specialists aboard shuttle mission STS-134. Credit: NASA

As contingency spacewalks go, the urgent task should be easy: a quick 2.5-hour run to swap out a failed backup computer that controls several systems on the International Space Station, including robotics. But NASA doesn’t want to go ahead with it until spare spacesuit parts arrive, in the aftermath of a life-threatening suit leak that took place last summer.

Those parts are on board the much-delayed SpaceX Dragon spacecraft sitting on a launch pad waiting for its next window to open. For this and other reasons, NASA decided to move ahead with the launch as planned Monday at 4:58 p.m. EDT (8:58 p.m. UTC). The spacewalk would take place April 22 — if Dragon gets there as planned on Wednesday.

“We need to get it [Dragon] on board as soon as we practically can,” said Mike Suffredini, the International Space Station’s program manager, in a phone briefing with reporters Sunday (April 13). That’s because Dragon is carrying a new spacesuit, components to fix an existing spacesuit, critical research experiments and food for the six crew members of Expedition 39.

The challenge, however, is making sure the station could be ready even if the primary multiplexer demultiplexer (MDM) fails before spacewalkers can make the backup replacement. There are more than a dozen MDMs on station, but each one controls different functions. This primary MDM not only controls a robotics mobile transporter, but also radiators and a joint to move the station’s solar arrays, among other things. The computer sits on the S0 truss on station, which you can view in the diagram below.

A diagram of the truss segments on the International Space Station. Click for a larger version. Screenshot of p. 3 of this PDF document: http://www.nasa.gov/pdf/167129main_Systems.pdf. Credit: NASA

“The biggest driver for us is the positioning of the solar arrays as we look to the next failure,” Suffredini said. NASA needs to reposition the arrays when a vehicle approaches because plumes from the thrusters can put extra “loads” or electrical power on the system.

At the same time, enough power must flow to the station for it to operate. Luckily, the angle of the sun is such these days that the array can sit in the same spot for a while, at least two to three weeks, Suffredini said. NASA configured the station so that even if the primary computer fails, the array will automatically position correctly.

NASA also will move a mobile transporter on station today so that the station’s robotic arm is ready to grasp the Dragon when it arrives, meaning that even if the primary computer fails the transporter will be in the right spot. If Dragon is delayed again, the next launch opportunity is April 18 and the spacewalk would be pushed back.

Dragon’s precious payload of items includes several intended to make NASA spacewalks safer. The suit leak was due to contamination in the fan pump separator of Suit 3011 that plugged a tiny hole inside the water separation part of the unit. Water then escaped and got into the helmet, causing a near-emergency for Luca Parmitano — who was using the spacesuit in July.

European Space Agency astronaut Luca Parmitano on a spacewalk July 9, 2016 during Expedition 36. Here, Parmitano is riding the end of the robotic Canadarm2. Credit: NASA

NASA installed snorkels and absorbent helmet pads into its spacesuits while awaiting the results of an investigation, and also pushing back all nonessential spacewalks. The agency now has recommendations in hand and is addressing those with the hope of resuming non-contingency spacewalks this summer.

Today, Suffredini also provided an update on what the contamination was. “The anomaly was the result of contamination introduced by filters essentially used to clean and scrub the water loops for us,” he said.

“Those introduced large amounts of silica into the system, and that silica eventually coagulates in the area of the fan pump sep [separator] and after many uses, it eventually can build up to the point where it plugs the holes and you can’t separate the water from the air.”

The next spacewalk will use Suit 3011 (which got a new fan pump separator for contingency spacewalks in December) and Suit 3005, which will use the new separator on board Dragon. The cooling lines on spacesuits on board station have been purged with fresh water to reduce the silica buildup, and astronauts will use new filters that they know are clean.

Expedition 15's Clay Anderson (on Canadarm2) and STS-118's Rick Mastracchio (right) during an August 2007 maintenance spacewalk on the International Space Station. The NASA astronauts relocated an S-Band antenna subassembly, installed a new transponder and retrieved another transponder. Credit: NASA — Expedition 15’s Clay Anderson (on Canadarm2) and STS-118’s Rick Mastracchio (right) during an August 2007 maintenance spacewalk on the International Space Station. The NASA astronauts relocated an S-Band antenna subassembly, installed a new transponder and retrieved another transponder. Credit: NASA

If for some reason Suit 3005 can’t be used, Suffredini added, the new suit could be put in place instead after some testing to make sure it’s ready. “We’re in a very good posture for the EVA [extra-vehicular activity],” Suffredini said.

NASA hasn’t decided who will go on the spacewalks yet, he added. There are at least two or three spare MDMs on station; the one needed for this particular spacewalk is inside the U.S. Destiny laboratory, which is handily right next to the S0 truss and spacesuit worksite.

Of the “big 12” repair jobs the astronauts train for, the MDM replacement is among the easiest, Suffredini said, adding astronauts never encountered an external MDM failure on station before.

The last set of contingency spacewalks took place in December to replace a failed ammonia pump that affected science experiments on station. Expedition 39’s Rick Mastracchio was among the pair “outside” during those spacewalks.

We will keep you apprised as circumstances warrant.