Daily Archives: December 24, 2013

NASA orders space-walks to repair the International Space Station
NASA has ordered astronauts aboard the International Space Station (ISS) to carry out emergency space-walks to repair its broken cooling system. Repair work ...

By: fairfest

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NASA orders space-walks to repair the International Space Station - Video

Let #39;s Listen: Mega Man IV (GB) - Wily Space Station (Extended)
Mega Man GameBoy Music Playlist: http://www.youtube.com/playlist?list=PLCA50FB348272C9DA Mega Man NES LP Playlist: http://www.youtube.com/playlist?list=PLu_f...

By: SilentWeaponsIII

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Let's Listen: Mega Man IV (GB) - Wily Space Station (Extended) - Video

Kerbal Space Program - Space Station V2.02 #1
Now that i have the full version, time to see what KSP (Kerbal Space Program) can really do with all the parts unlocked in the sandbox mode. So, i built myse...

By: comwarrior69

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Kerbal Space Program - Space Station V2.02 #1 - Video

NASA Previews Spacewalks to Replace ISS Coolant Pump
During NASA Television press briefing from Johnson Space Center, agency managers discussed a series of planned spacewalks, Dec. 21, 23 and 25 by NASA astrona...

By: NASA

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NASA Previews Spacewalks to Replace ISS Coolant Pump - Video

International Space Station Back To Earth Expedition 36
International Space Station International Space Station Back To Earth Expedition 36 I created this video with the YouTube Video Editor (http://www.youtube.co...

By: Samuel Ezerzer

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International Space Station Back To Earth Expedition 36 - Video

Astronauts aboard the International Space Station have received a gift just in time for Christmas: a new pump module to repair their ailing cooling system and to restore the outpost to full power.

NASA astronauts Rick Mastracchio and Mike Hopkins embarked on their second spacewalk together, setting out at 6:53 a.m. EST (1153 GMT) on Tuesday (Dec. 24) to complete the work they began Saturday to remove and replace an ammonia pump module with a faulty flow control valve.

"Houston from the airlock, we'd just like to say thanks to all the great folks doing all this hard work to get this space station back up and running," Mastracchio radioed at the end of the spacewalk, which concluded at 2:23 p.m. EST (1923 GMT), seven hours and 30 minutes after it began. [See photos from the Christmas Eve spacewalk]

"No, thank you guys," astronaut capcom Doug Wheelock replied from NASA's Mission Control in Houston. "It is the best Christmas ever. Thanks, guys."

"I'd just like to add to that," Hopkins said. "Fantastic work, merry Christmas to everybody. It took a couple of licks to get her done, but we got it."

The Christmas Eve EVA extravehicular activity, NASAs term for a spacewalk had the two astronauts retrieve a spare of the refrigerator-size cooling system device and install it on the space stations starboard, or right, side backbone truss. The 780-pound (355 kg) pump module replaced a faulty unit Mastracchio and Hopkins successfully and speedily removed three days ago.

The removal, which came just 10 days after a valve inside the module ceased working properly, was originally slated to be part of this second outing, but Mastracchio and Hopkins made quick work of disconnecting the degraded unit, allowing them the time to also remove and stow the module during the spacewalk Saturday.

Their get-ahead work negated the need for a planned third spacewalk.

Pump module in place

The failure of the flow control valve, which regulates the temperature of the ammonia coolant passing through the pump, resulted in restricting the space station to the use of just half of its cooling loop system needed to maintain equipment temperatures inside and outside of the outpost. Non-critical systems and science experiment hardware in two of the stations laboratories have been without power since the valve malfunctioned on Dec. 11.

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Space Station Gets New Pump for Christmas

CAPE CANAVERAL, FLA.Space station astronauts repaired a crippled cooling system during a rare Christmas Eve spacewalk Tuesday, braving a mini blizzard of noxious ammonia as they popped in a new pump.

It was the second spacewalk in four days for U.S. astronauts Rick Mastracchio and Michael Hopkins, and only the second Christmas Eve spacewalk ever.

NASA ordered up the spacewalks to revive a critical cooling loop at the International Space Station. All nonessential equipment had to be turned off when the line conked out Dec. 11, and many science experiments halted.

With Tuesdays success, the cooling system should be restored and all equipment back up and running by this weekend, according to NASA.

Its the best Christmas ever, Mission Control radioed as the 7 -hour spacewalk came to a close.

Merry Christmas to everybody, replied Hopkins. It took a couple weeks to get her done, but we got it.

Mastracchio and Hopkins removed the faulty ammonia pump during Saturdays spacewalk. On Tuesday, they installed the fresh pump.

Standing on the end of the stations main robotic arm, Hopkins clutched the 780-pound (353.8-kilogram), refrigerator-size pump with both hands as he headed toward its installation spot, and then slid it in. An astronaut working inside, Japans Koichi Wakata, gingerly steered the arm and its precious load.

Mike Hopkins taking a special sleigh ride on this Christmas Eve, Mission Control commentator Rob Navias said as the space station soared over the Pacific.

It was slow going because of a balky ammonia fluid line that sent frozen flakes of the extremely toxic substance straight at the men a mini blizzard, as Mission Control called it. The spacewalkers reported being surrounded by big chunks of the stuff that bounced off equipment and, in all probability, their suits.

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Space station astronauts complete repairs to cooling system on Christmas Eve spacewalk