New Crew Arrives at Space Station

The crew aboard the International Space Station is now back to a compliment of six. New Expedition 31 crew members Gennady Padalka, Joe Acaba and Sergei Revin docked and have now been welcomed on board the ISS after the hatches opened Thursday at 08:10 UTC (4:10 a.m. EDT). They docked to the Poisk module at 4:36 UTC (12:36 a.m. EDT) after a two day journey that began in Baikonur Cosmodrome, Kazakhstan aboard a Soyuz TMA-04M spacecraft. While they’ll be in space for about six months, the new crew members will get right to work preparing for the arrival of the first commercial cargo craft to the ISS. SpaceX’s Dragon is scheduled to launch at 08:55 UTC (4:55 a.m. EDT) this Saturday, May 19, with the Canadarm2 grappling Dragon on May 22, berthing it to the Harmony node.

Rocket Man Elton John Sings Greetings to the ISS

Sir Elton John sent a special message to the ‘rocket men’ on board the International Space Station by singing his classic song “Rocket Man.” The video was recorded on April 17, 40 years to the day after his single Rocket Man (I Think It’s Going To Be A Long, Long Time) was released around the world.

Sir Elton also added this greeting:
Continue reading “Rocket Man Elton John Sings Greetings to the ISS”

Expedition 31 Blasts Off!

Launch of the Soyuz TMA-04M rocket from the Baikonur Cosmodrome on May 15, 2012 (NASA/Bill Ingalls)

[/caption]

After a six-week delay, the crew of Expedition 31 successfully launched aboard a Soyuz TMA-04M rocket on Tuesday, May 15 at 0301 GMT (11:01 p.m. EDT May 14) from Russia’s historic Baikonur Cosmodrome, located in the steppes of Kazakhstan.

The rocket will deliver NASA astronaut Joe Acaba and Russian cosmonauts Gennady Padalka and Sergei Revin to the International Space Station. After a two-day journey, their Soyuz capsule will dock with the ISS at 11:38 p.m. CDT on Wednesday.

The launch was aired live by NASA HD TV. The full launch can be viewed below:

The crew was originally slated to launch on March 30, but problems with a pressure test forced a delay until a new Soyuz rocket could be brought into service. In the meantime ISS crew members Don Pettit, ESA astronaut Andre Kuipers and cosmonaut Oleg Kononenko have had the station to themselves since April 27.

The three new crew members will remain on Space Station until mid-September, serving as flight engineers under Expedition 31 commander Oleg Kononenko until July 1, when the current crew will depart and Padalka will assume command, marking the beginning of Expedition 32.

For more news on Expedition 31, visit NASA’s ISS website here. Also, you can follow NASA astronaut Joe Acaba on Twitter @AstroAcaba.

Members of the media photograph the Soyuz TMA-04M rocket launch from the Baikonur Cosmodrome. (NASA/Bill Ingalls)

Video credit: NASA TV. Images: NASA/Bill Ingalls

Former Astronaut Criticizes NASA’s Current Course

Former NASA astronaut Story Musgrave railed against the administration's current direction -- or lack thereof.

[/caption]

Former NASA astronaut Story Musgrave is neither happy nor excited about the current state of the space administration or about the commercial COTS (Commercial Orbital Transportation Services) program. He’s not happy, and he’s not afraid to say so.

“The whole thing is chaos and a cop out. The whole thing is a Washington failure,” Musgrave bluntly stated to Examiner.com’s Charles Atkeison in an interview this past weekend.

Story Musgrave in 1983 (NASA)

Musgrave was a NASA astronaut for over 30 years and was a crew member on six shuttle missions. He performed the first shuttle spacewalk on Challenger’s first flight, was a pilot on an astronomy mission, was the lead spacewalker on the Hubble repair mission and on his last flight he operated an electronic chip manufacturing satellite on Columbia.

He has 7 graduate degrees in math, computers, chemistry, medicine, physiology, literature and psychology. He has been awarded 20 honorary doctorates and was a part-time trauma surgeon during his 30 year astronaut career.

And, according to Atkeison, Musgrave “feels the space agency has no true goals or focus today.”

“We’re not going anywhere… there is no where, there is no what, and there is no when,” the former astronaut told Atkeison. “There is no Mars program, none. There is also no Moon program. There is no asteroid program… there’s no what we’re gonna do and no when we’re gonna do it.”

Neither does Musgrave put much faith in the value of the COTS program… which includes the upcoming launch of SpaceX’s Dragon capsule.

This isn’t the first time Musgrave has spoken out against NASA’s direction, either; in June of 2011 Musgrave lambasted the administration for its failure to have a “next step” after phasing out the shuttle program.

“Why are we so poor in our vision and so poor in our project management that we come to a point where it’s reasonable to phase out the current program and we have no idea what the next one is?” Musgrave said in 2011. “Washington has to stop doing that.”

Story Musgrave, now 76, currently operates a palm farm in Orlando, FL, a production company in Sydney and a sculpture company in Burbank, CA. He is also a landscape architect, a design professor and  a concept artist with Disney Imagineering. It’s clear that Musgrave is a man who knows what vision is — and isn’t. Still, he’s always honored to have had the opportunity to be a part of NASA.

“I’m massively privileged to be part of the space program, and I never forget to say that,” said Musgrave last year.

Read the full story by Charles Atkeison on Examiner.com here.

First spacewalk of the space shuttle era (STS-6) by Story Musgrave and Don Peterson to test new spacesuits and life support systems. (NASA)

Endeavour Unplugged – Last Picture Show from the Flight Deck of a Living Space Shuttle Orbiter

Last Power-Up of the Flight Deck of Space Shuttle Endeavour in May 2012 The flight deck of Space Shuttle Endeavour was powered up for the final time in early May 2012 to complete decommissioning activities for museum display. Endeavour was powered down on May 11, 2012 and all power to the flight deck was terminated for the last time in history. Credit: Ken Kremer

[/caption]

At 9:58 a.m. this morning (Friday May 11), technicians unplugged Space Shuttle Endeavour marking the final power down of NASA’s last powered orbiter and termination of all power flowing to the flight deck. Today, Endeavour was euthanized. The flight deck went dark for the last time as Endeavour is being prepped inside Orbiter Processing Facility-2 (OPF-2) for final departure from the Kennedy Space Center later this year and display at her final resting place in Los Angeles.

As Endeavour was powered back up this past week for one final time to carry out decommissioning and safing activities, a tiny media group was invited to crawl inside and photographically record the flight deck as a living spaceship for the last time in history. Ken Kremer and Mike Deep were honored to receive a NASA invitation and to represent Universe Today and we share our photos of Endeavour’s last flight deck power-up here.

Flight Deck of Space Shuttle Endeavour Powered up for the final time. Credit: Mike Deep

For me, standing on the astronauts flight deck was like being transported to the bridge of the “Starship Enterprise” – but this was real, not science fiction. I was at last standing on the “Starship Endeavour” and this was the closest I ever felt to being in space. The only thing better is being in orbit.

The blue display screens used by the Shuttle Commander and Pilot were real, lit and vividly moving before my eyes, dials were active and shining and multitudes of critical gauges lined the cabin all over from front to back, left to right , top to bottom.

Flight Deck of Space Shuttle Endeavour Powered up for the final time. Shuttle Commander seat at left, Shuttle Pilot seat at right. Credit: Ken Kremer/www.kenkremer.com

Endeavour was the youngest in NASA’s fleet of three surviving orbiters and designated as vehicle OV-105. She flew 25 missions over a spaceflight career that spanned 19 years from the inaugural flight in 1992 to the final flight in 2011 to deliver the dark matter hunting Alpha Magnetic Spectrometer (AMS) to the International Space Station (ISS). Altogether, Endeavour spent 299 days in space, orbited the Earth 4671 times and traveled over 197 million kilometers (123 million mi).

Endeavour’s power termination on May 11, 2012 comes almost exactly one year since her final launch on the 16 day long STS-134 mission on May 16, 2011. Since then technicians have been removing hazardous materials and propellants from the orbiters hydraulic and fuel lines and thoroughly cleansing Endeavour to make it safe for museum display to the general public. The power must be on to drain and purge the toxic materials.

Flight Deck of Space Shuttle Endeavour. Pilot seat. Credit: Mike Deep

This week I watched as technicians removed components of Endeavours fuel lines from the aft compartments that might possibly be reused at some future date inside NASA’s new Heavy Lift rocket, dubbed the SLS or Space Launch System.

Power to NASA’s two other orbiters, Discovery and Atlantis, was terminated in December on the 16th and 22rd respectively. Read my earlier story at Universe Today, here.

Following the forced retirement of the Space Shuttle Program for lack of money after the STS-135 mission in July 2011, all three orbiters were cleansed and purged of toxic contaminants in preparation for their final assignment as museum pieces.

The orbiters had a lot of usable life left in them, having flown barely a third of the 100 mission design lifetime.

Discovery was the first orbiter to leave the Kennedy Space Center. On April 17, Discovery was flown atop a modified Boeing 747 jumbo Jet to the Smithsonian’s Udvar-Hazy Center outside Washington, DC. Discovery was towed inside the museum on April 19 and placed on permanent public display.

Flight Deck of Space Shuttle Endeavour. Shuttle Commander seat. Credit: Ken Kremer

Since the conclusion of the Space Shuttle Program, the US has had absolutely zero capability to send astronauts or cargo to the International Space Station. For at least another 4 or 5 years, the US will be completely reliant on the Russians to ferry American astronauts to the ISS until around 2016 or 2017 when NASA’s hopes that one or more of the privately developed commercial “space taxis” will be ready to launch.

Devastating and continuous cuts to NASA’s budget by visionless politicians in Washington, DC have forced repeated delays to the initial launch of the commercial crew spacecraft- such as the SpaceX Dragon.

Flight Deck of Space Shuttle Endeavour. Shuttle Commander seat. Credit: Mike Deep
Flight Deck of Space Shuttle Endeavour. Credit: Mike Deep
Flight Deck of Space Shuttle Endeavour. Credit: Mike Deep
Flight Deck of Space Shuttle Endeavour. Pilot seat. Credit: Mike Deep
Side view of Flight Deck of Space Shuttle Endeavour behind Pilot seat. Credit: Ken Kremer
Dr. Ken Kremer aboard the USS Starship Endeavour in dry dock at the Kennedy Space Center and at the conclusion of her 19 year mission to boldly go where no NASA Space Shuttle has gone before !

To be one of the last humans on Earth present as an eyewitness to the historic last power up of the last living shuttle – Endeavour – while standing immersed inside the astronauts flight deck and experience what are truly the final days of NASA’s 30 year long Space Shuttle Program was simultaneously humbling, thrilling beyond words and incredibly sad – for all the missions that might yet have been and the Exploration and Discovery that’s yet to be accomplished on the High Frontier.

Ken Kremer

Engineer Thinks We Could Build a Real Starship Enterprise in 20 Years

Diagram of a proposed current generation of a Starship Enterprise. Credit: BuildTheEnterprise.org

[/caption]

In Star Trek lore, the first Constitution Class Starship Enterprise will be built by the year 2245. But today, an engineer has proposed — and outlined in meticulous detail – building a full-sized, ion-powered version of the Enterprise complete with 1G of gravity on board, and says it could be done with current technology, within 20 years. “We have the technological reach to build the first generation of the spaceship known as the USS Enterprise – so let’s do it,” writes the curator of the Build The Enterprise website, who goes by the name of BTE Dan.

This “Gen1” Enterprise could get to Mars in ninety days, to the Moon in three, and “could hop from planet to planet dropping off robotic probes of all sorts en masse – rovers, special-built planes, and satellites.”

Size comparisons of buildings to the proposed USS Enterprise. Credit: BuildTheEnterprise.org

Complete with conceptual designs, ship specs, a funding schedule, and almost every other imaginable detail, the BTE website was launched just this week and covers almost every aspect of how the project could be done. This Enterprise would be built entirely in space, have a rotating gravity section inside of the saucer, and be similar in size with the same look as the USS Enterprise that we know from Star Trek.

“It ends up that this ship configuration is quite functional,” writes BTE Dan, even though his design moves a few parts around for better performance with today’s technology. This version of the Enterprise would be three things in one: a spaceship, a space station, and a spaceport. A thousand people can be on board at once – either as crew members or as adventurous visitors.

While the ship will not travel at warp speed, with an ion propulsion engine powered by a 1.5GW nuclear reactor, it can travel at a constant acceleration so that the ship can easily get to key points of interest in our solar system. Three additional nuclear reactors would create all of the electricity needed for operation of the ship.

The saucer section would be a .3 mile (536 meter) diameter rotating, magnetically-suspended gravity wheel that would create 1G of gravity.

The first assignments for the Enterprise would have the ship serving as a space station and space port, but then go on to missions to the Moon, Mars, Venus, various asteroids and even Europa, where the ships’ laser would be used not for combat but for cutting through the moon’s icy crust to enable a probe to descend to the ocean below.

Of course, like all space ships today, the big “if” for such an ambitious effort would be getting Congress to provide NASA the funding to do a huge 20-year project. But BTE Dan has that all worked out, and between tax increases and spreading out budget cuts to areas like defense, health and human services, housing and urban development, education and energy, the cuts to areas of discretionary spending are not large, and the tax increases could be small. “These changes to spending and taxes will not sink the republic,” says the website. “In fact, these will barely be noticed. It’s amazing that a program as fantastic as the building a fleet of USS Enterprise spaceships can be done with so little impact.”

“The only obstacles to us doing it are the limitations we place on our collective imagination,” BTE Dan adds, and his proposal says that NASA will still receive funding for the science, astronomy and robotic missions it currently undertakes.

A detailed schedule of building the Enterprise. Credit: BuildTheEnterprise.org

But he proposes not just one Enterprise-class ship, but multiple ships, one of which can be built every 33 years – once per generation – giving three new ships per century. “Each will be more advanced than the prior one. Older ships can be continually upgraded over several generations until they are eventually decommissioned.”

BTE Dan, who did not respond to emails, lists himself as a systems engineer and electrical engineer who has worked at a Fortune 500 company for the past 30 years.

The website includes a blog, a forum and a Q&A section, where BTE Dan answers the question, “What if someone can prove that building the Gen1 Enterprise is beyond our technological reach?”

Answer: “If someone can convince me that it is not technically possible (ignoring political and funding issues), then I will state on the BuildTheEnterprise site that I have been found to be wrong. In that case, building the first Enterprise will have to wait for, say, another half century. But I don’t think that anyone will be able to convince me it can’t be done. My position is that we can – and should – immediately start working on it.”

For the complete space nerd experience, check out Build The Enterprise.

Hat tip to Rand Simberg.

SpaceX Dragon Launch Slides to May 19

April 30, 2012 static fire test of Falcon 9 rocket at Pad 40 in Cape Canaveral. Credit: SpaceX

[/caption]SpaceX has announced that the upcoming launch of the firms Falcon 9 and Dragon spacecraft on the commercial COTS 2 mission has been postponed to a new target date of no earlier than May 19 with a backup launch date of May 22.

On May 19, the Falcon 9 rocket would lift off on its first night time launch at 4:55 a.m. EDT (0855 GMT) from Space Launch Complex-40 on Cape Canaveral Air Force Station in Florida.

Two launch opportunities had been available this week on May 7 and May 10, following the most recent slip from April 30.

SpaceX managers made the decision – in consultation with NASA – to delay the COTS 2 launch in order to complete further highly critical testing and verifications of all the flight software requirements for the Dragon spacecraft to safely and successfully carry its mission of rendezvousing and docking with the International Space Station (ISS).

“SpaceX and NASA are nearing completion of the software assurance process, and SpaceX is submitting a request to the Cape Canaveral Air Force Station for a May 19th launch target with a backup on May 22nd,” said SpaceX spokesperson Kirstin Grantham.

“Thus far, no issues have been uncovered during this process, but with a mission of this complexity we want to be extremely diligent.”

May 10 was the last window of opportunity this week because of the pending May 14 blast off of a new Russian Soyuz TMA-04M capsule from the Baikonur Cosmodrome in Kazakhstan with three fresh crew members bound for the ISS which will restore the outpost to a full crew complement of 6 human residents.

The Falcon 9 and Dragon can only be launched about every three days.

The purpose of Dragon is to carry supplies up to and back from the ISS. Dragon is a commercial spacecraft developed by SpaceX and designed to replace some of the cargo resupply functions previously conducted by NASA’s fleet of prematurely retired Space Shuttle orbiters. At this moment the US has zero capability to launch cargo or crews to the ISS.

SpaceX Dragon approaches the ISS on 1st test flight and Station Docking in 2012. Astronauts will grapple it with the robotic arm and berth it at the Earth facing port of the Harmony node. Illustration: NASA /SpaceX

In response to the SpaceX announcement, NASA issued the following statement from from William Gerstenmaier, associate administrator for Human Exploration and Operations at the agency’s Headquarters in Washington:

“After additional reviews and discussions between the SpaceX and NASA teams, we are in a position to proceed toward this important launch. The teamwork provided by these teams is phenomenal. There are a few remaining open items, but we are ready to support SpaceX for its new launch date of May 19.”

SpaceX is under contract with NASA to conduct twelve resupply missions to the ISS to carry cargo back and forth for a cost of some $1.6 Billion.

Dragon is loaded with nearly 1200 pounds of non-critical cargo such as food and clothing on this flight.

The COTS 2 mission has been repeatedly delayed since the originally planned target of mid-2011 when SpaceX requested that the COTS 2 and 3 flights be combined into one mission to save time. The first Dragon docking to the ISS was initially planned for the COTS 3 mission.

This SpaceX Falcon 9 rocket inside the processing hanger at Pad 40 is due for liftoff on May 19, 2012 to the ISS. Credit: Ken Kremer/www.kenkremer.com

Ken Kremer

The View From Freedom 7

Alan Shepard on board the deck of the USS Champlain after recovery of Freedom 7. Credit: NASA


51 years ago today, on May 5, 1961, NASA launched the Mercury-Redstone 3 rocket carrying Alan B. Shepard, Jr. aboard the Freedom 7 capsule. Shepard successfully became America’s first man in space, making a brief but historic suborbital test flight that propelled American astronauts into the space race of the 1960s.

The video above is made from photographs taken by a film camera mounted to the Freedom 7 spacecraft and scanned by archivists at Johnson Space Center. It shows the view from Freedom 7 as the Redstone rocket launched it into space, getting an amazing view of Earth’s limb and the blackness beyond before falling back to splash down in the Atlantic.
The video is made from the entire film reel, so at the end there’s also some shots of a light experiment inside the spacecraft. (View the individual scans at ASU’s March to the Moon website here.)

What’s amazing to realize is that, at this point in time, the space surrounding our planet was a very empty place. This was a time before communication and weather satellites, before GPS, before Space Station and space shuttles — and space junk —  and student-made weather balloon videos. Just 51 years ago low-Earth orbit was a new frontier, and guys like Shepard (and Gagarin and Glenn, etc.) were blazing the path for everyone that followed.

Even though images of Earth from space are still amazing to look at today, seeing these photos reminds us of a time when it was all just so very new.

Read more about Shepard and the MR-3 launch here.

Images and video: NASA/JSC/Arizona State University

[/caption]

Chaos and Education at 120,000 feet for Camilla the Rubber Chicken

The helium balloon pops at the apex of the flight on March 10, 2012. Credit: Earth to Sky-Bishop CA

[/caption]

In my travels, I’ve had the pleasure of regularly meeting up with Camilla the Rubber Chicken, the social media maven and mascot for NASA’s Solar Dynamics Observatory. But lately I’ve been seeing here virtually everywhere — on television, splashed across all sorts of websites, and even in my local newspaper. What Camilla does is try to capture the imagination of students and get them interested in space and science. With her latest adventures she’s done just that, and now captured the attention of people all around the world, too.

What did she do? She flew to the stratosphere — about 36,000 meters (120,000 ft) up — on a helium balloon right into the throes of one of the most intense solar radiation storms since 2003.

“I am still glowing,” Camilla joked.

Inflating Camilla's ride. Image courtesy Bishop Union High School.

Students from Bishop Union High School’s Earth to Sky group spearheaded the flights, as Camilla actually flew twice — once on March 3 before the radiation storm and again on March 10 while the storm was in full swing. This would give the students a basis for comparison of the radiation environment.

On board with Camilla was a payload of four cameras, a cryogenic thermometer two GPS trackers, radiation detectors, Seven insects and two-dozen sunflower seeds (fittingly, the variety known as “Sunspot” — Helianthus annuus) all inside a modified department store lunchbox.

“We equipped Camilla with sensors to measure the radiation,” says Sam Johnson, 16, of Bishop Union High School’s Earth to Sky student group. “At the apex of our flight, the payload was above 99 percent of Earth’s atmosphere.”

Camilla made it back in one piece, but unfortunately, the insects died.

“This story is really about STEM (science, technology, engineering and math) and about these kids from Bishop, California who have worked really hard in developing the mission, planning it, and then executing it,” Camilla told Universe Today. “They had to overcome set-backs, review their processes, come up with better solutions and implement them. For them it was a great hands-on learning experience and they are and can be proud of their accomplishments.”

NASA knows that these kinds of programs, where kids can get involved in hands-on research, are very important for introducing and keeping students interested in STEM subjects, important areas of study for future NASA scientists and engineers.

“As you know, I not only want to educate about our Sun and space weather, but I want to inspire and show kids (and adults) how much fun science and engineering really is,” Camilla said via email. “Team SDO’s goal has always been to encourage more girls into STEM careers and seeing that this team had several girls on the team was just the most rewarding.”

Students prepare Camilla for her ride into the stratosphere. Image courtesy Bishop Union High School.

The video of the balloon popping and part of Camilla’s flight:

During the two-and-a-half-hour flights, Camilla spent approximately 90 minutes in the stratosphere where temperatures ( -40 to -60 C, -40 to -76 F) and air pressures (1 percent sea level) are akin to those on the planet Mars. The balloon popped, as planned, at an altitude of about 40 km (25 miles) and Camilla parachuted safely back to Earth. The entire payload was recovered intact from a landing site in the Inyo Mountains.

The fifth grade students who assisted with the flight have planted the sunflower seeds to see if radiated seeds produce flowers any different from seeds that stayed behind on Earth. They also pinned the corpses of the insects to a black “Foamboard of Death,” a rare collection of bugs that have been to the edge of space.

Meanwhile, Camilla’s radiation badges have been sent to a commercial laboratory for analysis.

The students say they are looking forward to the data and perhaps sending Camilla back for more.

“I truly believe that text books will always be around,” Camilla said, “but real-life hands-on projects like these are wonderful, and will become more popular.”

Here’s a video of an X-class flare from sunspot AR1429, which unleashed more than 50 solar flares during the first two weeks of March:

Read more about Camilla’s adventures, or our previous article, How a Rubber Chicken is Spreading the Word About NASA’s Space Missions and Science.

SpaceX Falcon 9 Set for Critical Engine Test Firing on Monday, April 30

The SpaceX Dragon spacecraft rests on top of the Falcon 9 rocket at SpaceX’s launch site in Cape Canaveral, FL. Credit: SpaxeX

[/caption]

On Monday, April 30, SpaceX (Space Exploration Technologies) is all set to conduct a critical static engine test fire of the Falcon 9 rocket at the firm’s launch pad on Cape Canaveral, Florida.

If all goes well, SpaceX and NASA are targeting a May 7 liftoff of the rocket and Dragon spacecraft at 9:38 AM, bound for the International Space Station (ISS). This launch signifies the first time that a commercial company is attempting to dock at the ISS.

The Falcon 9 rocket with the Dragon bolted on top was rolled out to the pad at Space Launch Complex 40 (SLC-40) on the transporter-erecter on Sunday morning (April 29), SpaceX spokesperson Kirstin Grantham told Universe Today.

“The Falcon 9 is vertical. Fueling begins Monday,” said Grantham.

On Sunday night, SpaceX CEO Elon Musk tweeted: “Dragon review completed. All systems now ready for full thrust hold down firing on Monday.”

Today the 180 foot long rocket was moved about 600 feet on rail tracks from the processing hanger to Pad 40 in anticipation of the engine test firing.

During the hotfire test, all nine of the powerful liquid fueled Merlin 1C first stage engines will be ignited at full power for two seconds as part of a full launch dress rehearsel for the flight, dubbed COTS 2. SpaceX engineers will run through all launch procedures on Monday as though this were an actual launch on launch day.

This is the second Falcon 9 launch for NASA as part of the agency’s Commercial Orbital Transportation Services program designed to enable commercial firms to deliver cargo to the ISS following the retirement of NASA’s fleet of Space Shuttles. The first Falcon 9 COTS test flight took place in December 2010.

The Dragon spacecraft being rotated before it is mated to the Falcon 9 rocket in SpaceX’s hangar in Cape Canaveral, FL. CREDIT: NASA

You can watch a live webcast of the engine test at www.spacex.com starting at 2:30 PM ET/ 11:30 AM PT, with the actual static fire targeted for 3:00 PM ET/ 12:00 PM PT according to SpaceX.

SpaceX is under contract to NASA to conduct twelve resupply missions to the ISS to carry cargo back and forth for a cost of some $1.6 Billion.

This SpaceX Falcon 9 rocket inside the processing hanger at Pad 40 is due for liftoff on May 7, 2012 to the ISS. The Falcon 9 booster was moved on rail tracks to the pad on April 29 and the Merlin 1C first stage engines (at right) will be test fired on April 30. Credit: Ken Kremer