NASA Archives

April 21, 2014December 23, 2015 by David Dickinson

Our Guide to the Bizarre April 29th Solar Eclipse

The 2013 partial eclipse rising over the Vehicle Assembly Building along the Florida Space Coast. This month's solar eclipse will offer comparable sunset views for eastern Australia. Photo by author.

Will anyone see next week’s solar eclipse? On April 29^th, an annular solar eclipse occurs over a small D-shaped 500 kilometre wide region of Antarctica. This will be the second eclipse for 2014 — the first was the April 15^th total lunar eclipse — and the first solar eclipse of the year, marking the end of the first eclipse season. 2014 has the minimum number of eclipses possible in one year, with four: two partial solars and two total lunars. This month’s solar eclipse is also a rarity in that it’s a non-central eclipse with one limit. That is, the center of the Moon’s shadow — known as the antumbra during an annular eclipse — will juuuust miss the Earth and instead pass scant kilometres above the Antarctic continent.

The "footprint" of the April 29th solar eclipse. Credit: — The “footprint” of the April 29th solar eclipse. Credit: Eclipse predictions by Fred Espenak, NASA/GSFC.

A solar eclipse is termed “non-central with one limit” when the center of the Moon’s umbra or antumbra just misses the Earth and grazes it on one edge. Jean Meeus and Fred Espenak note that out of 3,956 annular eclipses occurring from 2000 BCE to 3000 AD, only 68 (1.7%) are of the non-central variety. An annular eclipse occurs when the Moon is too distant to cover the disk of the Sun, resulting in a bright “annulus” or “ring-of-fire” eclipse. A fine example of just such an eclipse occurred over Australia last year on May 10^th, 2013. An annular eclipse crossed the United States on May 10^th, 1994 and will next be seen from the continental U.S. on October 14^th 2023. But of course, we’ll see an end the “total solar eclipse drought” long before that, when a total solar eclipse crosses the U.S. on August 21^st, 2017!

An animated .gif of the April 29th eclipse. Credit: NASA/GSFC/A.T. Sinclair.

The “centrality” of a solar eclipse or how close a solar eclipse comes to crossing the central disk of the Earth is defined as its “gamma,” with 0 being a central eclipse, and 1 as the center of the Moon’s shadow passing 1 Earth radii away from central. All exclusively partial eclipses have a gamma greater than 1. The April 29^th eclipse is also unique in that its gamma is very nearly 1.000… in fact, combing the 5,000 year catalog of eclipses reveals that no solar eclipse from a period of 2000 B.C. to 3000 A.D. comes closer to this value. The solar eclipses of October 3^rd, 2043 and March 18^th, 1950 are, however very similar in their geometry. Guy Ottewell notes in his 2014 Astronomical Calendar that the eclipses of August 29^th, 1486 and January 8^th, 2141 also come close to a gamma of 1.000. On the other end of the scale, the solar eclipse of July 11^th 1991 had a gamma of nearly zero. This eclipse is part of saros series 148 and is member 21 of 75. This series began in 1653 and plays out until 2987 AD. This saros will also produce one more annular eclipse on May 9^th 2032 before transitioning to a hybrid and then producing its first total solar eclipse on May 31^st, 2068. But enough eclipse-geekery. Do not despair, as several southern Indian Ocean islands and all of Australia will still witness a fine partial solar eclipse from this event. Antarctica has the best circumstances as the Sun brushes the horizon, but again, the tiny sliver of “annularity” touches down over an uninhabited area between the Dumont d’Urville and Concordia stations currently occupied by France… and it just misses both! And remember, its astronomical fall headed towards winter “down under,” another strike against anyone witnessing it from the polar continent. A scattering of islands in the southern Indian Ocean will see a 55% eclipsed Sun. Circumstances for Australia are slightly better, with Perth seeing a 55% eclipsed Sun and Sydney seeing a 50% partial eclipse.

The view of the eclipse from multiple locations across the Australian continent at 7:00 UT on April 29th. Created by the author using Stellarium.

Darwin, Bali Indonesia and surrounding islands will see the Moon just nick the Sun and take a less than 20% “bite” out of it. Observers in Sydney and eastern Australia also take note: the eclipse occurs low to the horizon to the west at sunset, and will offer photographers the opportunity to grab the eclipse with foreground objects. Viewing a partial solar eclipse requires proper eye protection throughout all phases. The safest method to view a partial solar eclipse is via projection, and this can be done using a telescope (note that Schmidt-Cassegrain scopes are bad choice for this method, as they can heat up quickly!) or nothing more sophisticated than a spaghetti strainer to create hundreds of little “pinhole projectors.”

A simulation of the view that no one will see: the annular eclipse one kilometre above latitude 71S longitude 131E above the Antarctic. Created using Stellarium. — A simulation of the view that no one will see: the annular eclipse as seen hovering one kilometre above the Antarctic at latitude 71S longitude 131E . Created using Stellarium.

And although no human eyes may witness the annular portion of this eclipse, some orbiting automated ones just might. We ran some simulations using updated elements, and the European Space Agency’s Sun observing Proba-2 and the joint NASA/JAXA Hinode mission might just “thread the keyhole” and will witness a brief central eclipse for a few seconds on April 29^th: And though there’ll be few webcasts of this remote eclipse, the ever-dependable Slooh is expected to carry the eclipse on April 29th. Planning an ad hoc broadcast of the eclipse? Let us know! As the eclipse draws near, we’ll be looking at the prospects for ISS transits and more. Follow us as @Astroguyz as we look at these and other possibilities and tell our usual “tales of the saros”. And although this event marks the end of eclipse season, its only one of two such spans for 2014… tune in this October, when North America will be treated to another total lunar eclipse on the 8^th and a partial solar eclipse on the 23^rd… more to come! Send in those eclipse pics to the Universe Today Flickr community… you just might find yourself featured in this space!

April 20, 2014December 23, 2015 by Ken Kremer

Easter Sunday Space Station Rendezvous and Berthing for SpaceX Dragon Freighter Successful

SpaceX Dragon resupply spacecraft arrives for successful berthing and docking at the International Space Station on Easter Sunday morning April 20, 2014. Credit: NASA TV

The SpaceX 3 Dragon commercial cargo freighter successfully arrived at the International Space Station (ISS) on Easter Sunday morning, April 20, as planned and was deftly captured by Expedition 39 Commander Koichi Wakata at 7:15 a.m. EDT at the controls of the Canadian built robotic arm.

The next step due shortly is berthing of Dragon at the Earth facing port of the Harmony module at approximately 9:30 a.m. EDT.

Berthing was officially completed at 10:06 a.m. EDT while the massive complex was soaring 260 miles above Brazil.

This story is being updated as events unfold. The mission is the company’s third cargo delivery flight to the station.

The Dragon vehicle loaded with nearly 2.5 tons of science experiments and supplies moved ever so slowly closely to within grappling distance – dramatically backdropped with gorgeous and ever changing scenery of our Home Planet sliding below.

The million pound orbiting lab complex and free flying SpaceX Dragon were soaring some 260 miles above Egypt and the Nile River as the 57 foot long robotic arm grappled the resupply ship.

SpaceX Dragon resupply spacecraft arrives for berthing at the International Space Station on Easter Sunday morning April 20, 2014. Credit: NASA TV

Dragon was approximately 30 feet (10 meters) away from the stations hull at the time of capture.

Wakata, of the Japan Aerospace Exploration Agency, was assisted by NASA astronaut Rick Mastracchio, while both were working from inside the 7 windowed Cupola robotics work station. Newly arrived NASA astronaut Steve Swanson observed the proceedings with a big smile.

“Congratulations to the entire ops team for the successful launch, rendezvous and capture of Dragon,” Wakata radioed mission control moments after the successful grapple.

“Great work catching the Dragon, enabling fantastic science,” radioed Capcom Steve Fisher from NASA Houston Mission Control.

SpaceX Dragon resupply spacecraft grappled by Canada robotic arm for berthing at the International Space Station on Easter Sunday morning April 20, 2014. Backdrop of Erath look like dried out river channel on Mars! Credit: NASA TV — SpaceX Dragon resupply spacecraft grappled by Canada robotic arm for berthing at the International Space Station on Easter Sunday morning April 20, 2014. Backdrop of Earth looks like dried out river channel on Mars! Credit: NASA TV

Cheers and celebrations erupted at SpaceX Mission Control at the firms headquarters in Hawthorne, Calif.

Dragon arrived this morning following Friday afternoons, Apr 18, spectacular blastoff from Cape Canaveral, Fla, atop an upgraded SpaceX Falcon 9 booster.

A two day orbital chase ensued with a series of critical engine burns targeting the ISS for Easter Sunday’s rendezvous and docking activities.

Rick Mastracchio was at the controls for the actual berthing and latching in place at Harmony with Dragon’s Common Berthing Mechanism (CBM).

NASA astronaut Steve Swanson, ISS Commander Koichi Wakata and NASA Astronaut Rick Mastracchio work inside the 7 windowed Cupola robotics work station module during Dragon berthing on Easter Sunday morning April 20, 2017. Credit: NASA TV

The berthing process started at about 9:30 a.m. EDT.

4 latches were driven for 1st stage of capture. Followed by all 16 bolts and latches in total during second stage capture to firmly hold Dragon in place.

The crew and mission control concluded the berthing procedure at 10:06 a.m. EDT flying over Brazil.

The next step is for the crew to pressurize the vestibule connecting Dragon to station.

Hatch opening is set to take place on Monday morning.

It’s a busy week ahead for the six person international crew representing the US, Russia and Japan.

A Russian Progress departs on Wednesday followed by the 2 person US spacewalk to replace the failed MDM unit.

Dragon will remain attached to the station until May 18.

This story is being updated. Check back.

ISS Schematic showing modules and Dragon, Soyuz and Progress docking ports. Credit: NASA TV

The SpaceX-3 mission marks the company’s third 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 ISS during a dozen Dragon cargo spacecraft flights through 2016.

There are over 150 science experiments loaded aboard the Dragon capsule for research to be conducted by the crews of ISS Expeditions 39 and 40.

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 Earth observing imaging camera suite (HDEV), a laser 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.

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

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.

Screenshots by Rob v. Mackelenbergh.

Ken Kremer

April 19, 2014December 23, 2015 by Ken Kremer

SpaceX Makes Strides Towards 1st Stage Falcon Rocket Recovery during Space Station Launch

Blastoff of SpaceX Falcon 9 rocket from Cape Canaveral Air Force Station in Florida on April 18, 2014. Credit: Alan Walters/AmericaSpace
Story updated[/caption]

The powerful SpaceX Falcon 9 rocket that launched successfully on a cargo delivery run for NASA bound for the Space Station on Friday, April 18, from Cape Canaveral, Fla, also had a key secondary objective for the company aimed at experimenting with eventually recovering the rockets first stage via the use of landing legs and leading to the boosters refurbishment and reuse further down the road.

Marking a first of its kind test, this 20 story tall commercial Falcon 9 rocket was equipped with a quartet of landing legs to test controlled soft landing techniques first in the ocean and then back on solid ground at some later date this year or next – by reigniting the 1st stage engines for a guided touchdown.

The 12 foot diameter Falcon 9 rocket would sprout the legs just prior to water impact for the controlled soft landing in the Atlantic Ocean, guided by SpaceX engineers.

'Threading the needle', the Falcon 9/Dragon vehicle passes through the catenary lightning wires as it roars from the pad on the CRS-3 mission. Credit: nasatech.net — ‘Threading the needle’, the Falcon 9/Dragon vehicle passes through the catenary lightning wires as it roars from the pad on the CRS-3 mission. Credit: nasatech.net

Prior to the launch SpaceX managers were careful not to raise expectations.

“The entire recovery of the first stage is completely experimental,” said Hans Koenigsmann, SpaceX vice president of mission assurance. “It has nothing to do with the primary mission.”

He estimated the odds of successfully retrieving an intact booster at merely 30 or 40 percent.

Following Friday’s blastoff, SpaceX reported they made significant strides towards that goal of a 1st stage recovery.

1st stage of SpaceX Falcon 9 rocket equipped with landing legs and now scheduled for launch to the International Space Station on March 16, 2014 from Cape Canaveral, FL. Credit: SpaceX/Elon Musk — 1st stage of SpaceX Falcon 9 rocket equipped with landing legs which launched to the International Space Station on April 18, 2014 from Cape Canaveral, FL. Credit: SpaceX/Elon Musk

SpaceX engineers had preprogrammed the spent first stage to relight several Merlin 1 D engines after completing the boost phase and stage seperation to stabilize it, reduce its roll rate and then gradually lower its altitude back down to the Atlantic Ocean’s surface for a soft landing attempt and later possible recovery by retrieval ships.

All these critical steps seemed to go fairly well in initial reports that are subject to change.

SpaceX CEO and founder Elon Musk reported at a post launch briefing and later tweeted further updates that the Falcon 9 first stage actually made a good water landing despite rough seas, with waves swelling at least six feet.

“Roll rate close to zero (v important!).”

“Data upload from tracking plane shows landing in Atlantic was good! Several boats enroute through heavy seas,” Musk tweeted.

Furthermore he reported that the 1st stage survived the ocean touchdown.

“Flight computers continued transmitting for 8 seconds after reaching the water. Stopped when booster went horizontal.”

Because of the high waves, the recovery boats had difficulty reaching the booster in the recovery area located some two hundred miles off shore from Cape Canaveral.

Several previous attempts by SpaceX to recover the first stage via parachutes and thrusters were not successful. So SpaceX adopted this new approach with the landing legs and 1st stage Merlin 1 D engines.

Further details will be proved when they become available.

SpaceX Falcon 9 rocket liftoff on April 18, 2014 from Space Launch Complex 40 at Cape Canaveral, Fla. Credit: Julian Leek

The attachment of the 25 foot long 1st stage landing legs to SpaceX’s next-generation Falcon 9 rocket for ocean recovery counts as a major step towards the firm’s future goal of building a fully reusable rocket and dramatically lowering launch costs compared to expendable boosters.

The eventual goal is to accomplish a successful first stage touchdown by the landing legs on solid ground back somewhere near on Cape Canaveral, Florida.

Musk said that SpaceX is still working out the details on finding a suitable landing location with NASA and the US Air Force.

Extensive work and testing remains to develop and refine the technology before a land landing will be attempted by the company, says Musk.

It will be left to future missions to accomplish a successful first stage touchdown by the landing legs back on solid ground back through a series of ramped up rocket tests at Cape Canaveral, Florida.

“Even though we probably won’t get the stage back, I think we’re really starting to connect the dots of what’s needed,” Musk said at the briefing.

“There are only a few more dots that need to be there to have it all work. I think we’ve got a decent chance of bringing a stage back this year, which would be wonderful.”

Overall Musk was very pleased with the performance of the rocket and the landing leg test.

“I would consider it a success in the sense that we were able to control the boost stage to a zero roll rate, which is previously what has destroyed the stage, an uncontrolled roll, where the on-board nitrogen thrusters weren’t able to control the aerodynamic torque and spun up.”

“This time, with more powerful thrusters and more nitrogen propellant, we were able to null the roll rates.”

“I’m feeling pretty excited,” Musk stated. “This is a happy day. Most important of all is that we did a good job for NASA.”

This extra powerful new version of the Falcon 9 dubbed v1.1 is powered by a cluster of nine of SpaceX’s new Merlin 1D engines that are about 50% more powerful compared to the standard Merlin 1C engines. The nine Merlin 1D engines 1.3 million pounds of thrust at sea level rises to 1.5 million pounds as the rocket climbs to orbit.

Therefore the upgraded Falcon 9 can boost a much heavier cargo load to the ISS, low Earth orbit, geostationary orbit and beyond.

Indeed Dragon is loaded with nearly 5000 pounds of cargo, about double the weight carried previously.

If all goes well, Dragon will reach the ISS early on Easter Sunday morning after a two day orbital chase.

Station crew members Rick Mastracchio and Steven Swanson will grapple the Dragon cargo freighter with the 57 foot long Canadarm2 on Easter Sunday at about 7:14 a.m. and then berth it at the Earth-facing port of the Harmony module.

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

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

Rising slowly from Pad 40, the fully loaded Dragon and Falcon 9 v1.1 vehicle begin the mission to ISS. Credit: nasatech.net

April 18, 2014December 23, 2015 by Ken Kremer

SpaceX Commercial Dragon Resupply Ship Thunders to Space Bound for ISS and Easter Sunday Berthing – Photo Gallery

SpaceX Falcon 9 rocket and Dragon resupply ship launch from the Cape Canaveral Air Force Station in Florida on April 18, 2014. Credit: Jeff Seibert/Wired4Space
See expanding launch gallery below[/caption]

A mighty SpaceX rocket carrying the firms commercial Dragon resupply ship loaded with nearly 2.5 tons of NASA science instruments and critical supplies thundered to space this afternoon on a two day journey bound for the International Space Station.

The Dragon vessel launched atop the 20 story tall, upgraded Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida precisely on time at 3:25 p.m. EDT (1925 GMT), Friday, April 18.

“I want to congratulate SpaceX. Everyone did a great job” said William Gerstenmaier, NASA associate administrator for human exploration and operations, at a post launch briefing at the Kennedy Space Center press site.

“The SpaceX team went the extra mile to get everything ready for an on time launch.”

The spectacular blastoff went off without a hitch despite a poor weather prognosis in the morning that brightened considerably in the final hours leading up to the afternnon liftoff.

“Everything went well with the ascent,” said SpaceX CEO and founder Elon Muck at the briefing.

“I’m pretty excited. We did a good gob for our NASA customer and that’s very important,” Musk added.

The on time blastoff sets the stage for an Easter Sunday, April 20, rendezvous and berthing of the Dragon resupply spacecraft at the massive orbiting outpost packed with a striking variety of science experiments and needed supplies for the six person crew.

Station crew members Rick Mastracchio and Steven Swanson will grapple the Dragon cargo freighter with the 57 foot long Canadarm2 on Easter Sunday at about 7:14 a.m. if all goes well and then berth it at the Earth-facing port of the Harmony module.

The SpaceX-3 mission marks the company’s third 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 ISS during a dozen Dragon cargo spacecraft flights through 2016.

There are over 150 science experiments loaded aboard the Dragon capsule for research to be conducted by the crews of ISS Expeditions 39 and 40.

“SpaceX is delivering important research experiments and cargo to the space station,” said Gerstenmaier.

SpaceX Falcon 9 rocket clears the tree line on April 18, 2014 on science mission bound for the ISS from Cape Canaveral, Florida Credit: Nicole Solomon — SpaceX Falcon 9 rocket clears the tree line on April 18, 2014 on science mission bound for the ISS from Cape Canaveral, Florida. Credit: Nicole Solomon

“The diversity and number of new experiments is phenomenal. The investigations aboard Dragon will help us improve our understanding of how humans adapt to living in space for long periods of time and help us develop technologies that will enable deep space exploration.”

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

To date SpaceX had 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.

The next launch of Orbital Sciences Antares/Cygnus commercial rocket to the ISS from NASA Wallops, VA, was tentatively slated for May 6. But the target date will now slip to into mid-June since it can’t arrive until the Dragon departs.

Both the Dragon and Antares dock at the same port on the Harmony module at the end of the station.

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

Blastoff of SpaceX Falcon 9 rocket from Cape Canaveral Air Force Station in Florida on April18, 2014. Credit: John Studwell — Blastoff of SpaceX Falcon 9 rocket from Cape Canaveral Air Force Station in Florida on April 18, 2014. Credit: John Studwell/AmericaSpace

Liftoff of SpaceX Falcon 9 rocket and Dragon from Cape Canaveral Air Force Station, Fla, April 18, 2014. Credit: Ken Kremer/kenkremer.com

The SpaceX Falcon 9 rocket launches from the Cape Canaveral Air Force Station in Florida on April18, 2014. Credit: NASA TV — The SpaceX Falcon 9 rocket launches from the Cape Canaveral Air Force Station in Florida on April 18, 2014. Credit: NASA TV

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.

SpaceX Falcon 9 rocket preparing for April 18, 2014 liftoff from Space Launch Complex 40 at the Cape Canaveral Air Force Station, Fla. Credit: Julian Leek

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 17, 2014December 23, 2015 by Jason Major

Kepler Has Found the First Earth-Sized Exoplanet in a Habitable Zone!

Artist's rendering of Kepler-186f (Credit: NASA Ames/SETI Institute/Caltech)

It’s truly a “eureka” moment for Kepler scientists: the first rocky Earth-sized world has been found in a star’s habitable “Goldilocks” zone, the narrow belt where liquid water could readily exist on a planet’s surface without freezing solid or boiling away. And while it’s much too soon to tell if this really is a “twin Earth,” we can now be fairly confident that they do in fact exist.

The newly-confirmed extrasolar planet has been dubbed Kepler-186f. It is the fifth and outermost planet discovered orbiting the red dwarf star Kepler-186, located 490 light-years away. Kepler-186f completes one orbit around its star every 130 days, just within the outer edge of the system’s habitable zone.

The findings were made public today, April 17, during a teleconference hosted by NASA.

“This is the first definitive Earth-sized planet found in the habitable zone around another star,” says lead author Elisa Quintana of the SETI Institute at NASA Ames Research Center. “Finding such planets is a primary goal of the Kepler space telescope. The star is a main-sequence M-dwarf, a very common type. More than 70 percent of the hundreds of billions of stars in our galaxy are M-dwarfs.”

A visualization of the “unseen” red dwarfs in the night sky. Credit: D. Aguilar & C. Pulliam (CfA) — A visualization of the many “unseen” red dwarfs in the night sky. (CLICK FOR ANIMATION) Credit: D. Aguilar & C. Pulliam (CfA)

Unlike our Sun, which is a G-type yellow dwarf, M-dwarf stars (aka red dwarfs) are much smaller and dimmer. As a result their habitable zones are much more confined. But, being cooler stars, M-dwarfs have long lifespans, offering planets in their habitable zones — like Kepler-186f — potentially plenty of time to develop favorable conditions for life.

In addition, M-dwarfs are the most abundant stars in our galaxy; 7 out of 10 stars in the Milky Way are M-dwarfs, although most can’t be seen by the naked eye. Finding an Earth-sized planet orbiting one relatively nearby has enormous implications in the hunt for extraterrestrial life.

“M dwarfs are the most numerous stars,” said Quintana. “The first signs of other life in the galaxy may well come from planets orbiting an M dwarf.”

Still, there are many more conditions on a planet that must be met for it to be actually habitable. But size, composition, and orbital radius are very important first steps.

“Some people call these habitable planets, which of course we have no idea if they are,” said Stephen Kane, an assistant professor of physics and astronomy at San Francisco State University in California. “We simply know that they are in the habitable zone, and that is the best place to start looking for habitable planets.”

Scale comparison of the Kepler-186 system to our inner Solar System ( — Scale comparison of the Kepler-186 system and the inner Solar System (NASA Ames/SETI Institute/Caltech)

As far as the planetary system’s age is concerned — which relates to how long life could have potentially had to evolve on Kepler-186f’s surface — that’s hard to determine… especially with M-dwarf stars. Because they are so stable and long-lived, once they’re formed M-dwarfs essentially stay the same throughout their lifetimes.

“We know it’s probably older than a few billion years, but after that it’s very difficult to tell,” BAERI/Ames scientist Tom Barclay told Universe Today. “That’s the problem with M-dwarfs.”

A comparison of the Kepler 186 and Solar systems (NASA/Ames) — A comparison of the Kepler 186 and Solar systems (Presentation slide, NASA/Ames)

The exoplanet was discovered via the transit method used by NASA’s Kepler spacecraft, whereby stars’ brightnesses are continually monitored within a certain field of view. Any dips in luminance reveal the likely presence of a passing planet.

Because of its small size — just slightly over 1 Earth radius — and close proximity to its star, Kepler-186f can’t be observed directly with current telescope technology.

The Gemini North telescope on the summit of Mauna Kea (Gemini Observatory/AURA)

“However, what we can do is eliminate essentially all other possibilities so that the validity of these planets is really the only viable option,” said Steve Howell, Kepler project scientist and a co-author on the paper.

Using the latest advanced imaging capabilities of the Gemini North and Keck II observatories located atop Mauna Kea in Hawaii, astronomers were able to determine that the signals detected by Kepler were from a small orbiting planet and not something else, such as a background or companion star.

“The Keck and Gemini data are two key pieces of this puzzle,” Quintana said. “Without these complementary observations we wouldn’t have been able to confirm this Earth-sized planet.”

Kepler-186f joins the other 20 extrasolar worlds currently listed in the Habitable Exoplanets Catalog, maintained by the Planetary Habitability Laboratory at the University of Puerto Rico at Arecibo. To date 961 exoplanets have been confirmed through Kepler observations, with 1,696 total confirmed altogether. (Source)

Artist's conception of the Kepler Space Telescope. Credit: NASA/JPL-Caltech — Artist’s conception of the Kepler Space Telescope. Credit: NASA/JPL-Caltech

Whether Kepler-186f actually resembles Earth or not, this discovery provides more information on the incredible variety of planetary systems to be found even in our little corner of the galaxy.

“The diversity of these exoplanets is one of the most exciting things about the field,” Kane said. “We’re trying to understand how common our solar system is, and the more diversity we see, the more it helps us to understand what the answer to that question really is.”

The SETI Institute’s Allen Telescope Array has surveyed the Kepler-186 system for any potential signals but so far none has been detected. Further observations are planned.

“Kepler-186f is special because we already know that a planet of its size and distance is capable of supporting life.”
– Elisa Quintana, research scientist, SETI Institute

The team’s paper, “An Earth-sized Planet in the Habitable Zone of a Cool Star” by Elisa V. Quintana et al., will be published in the April 18 issue of Science.

Learn more about the Kepler mission here, and read more about this discovery in NASA’s news release here and on the W.M. Keck website here.

Watch some video excerpts of team interviews and data renderings below:

Also, you can download the slides used in the NASA teleconference here.

Sources: San Francisco State University, Gemini Observatory, W.M. Keck Observatory, and SETI news releases

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