August 16th, 2010
12:20 PM ET

Astronauts replace failed cooling equipment on space station

The repairs performed on the International Space Station's cooling system Monday morning appear to be working.

NASA astronauts Doug Wheelock and Tracy Caldwell Dyson installed a spare 780-pound ammonia pump module to replace a broken unit that they removed last Wednesday, NASA said on its website. Wheelock attached four bolts and Caldwell Dyson mated five electrical connectors, then ground controllers confirmed the module was in healthy condition when it began receiving power. After a pressure check and more fluid cable connections, ammonia began to flow into the module, NASA said.

All of the fluid lines are connected and no ammonia leaks were reported, according to NASA's Twitter feed.


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soundoff (2 Responses)

    Why the $200 billion ISS could DIE soon (and HOW to avoid it)

    August 16, 2010 at 10:01 pm | Report abuse |


      just a question, to ALL space and science journalists, bloggers, experts, etc. about the Space Shuttle's "commercial" replacement (the '60s Soyuz/Progress-like Pepsi cans called Dragon...)

      some people are pro-Shuttle, others are against it, but ALL know the DETAILED Space Shuttle data

      some people are pro-Ares1/5, others are against them, but ALL know the DETAILED Ares1/5 NASA studies

      some people are pro-EELVs, others are against them, but ALL know the DETAILED Delta/Atlas/Ariane/etc. data and launches

      well, now, some people are pro "commercial space", others are against it, but HOW they/we can be PRO or AGAINST it, if they/we STILL don't know the EXACT data and info of the "commercial" vehicles??????????

      e.g. SpaceX hasn't given yet any detailed info and data about the Dragon

      the specs available in the .pdf published on the SpaceX site aren't so clear

      so, it's hard to evaluate this vehicle to know what it really can or can't do

      these are the exact data we need to know from SpaceX about the Dragon:

      – interstage mass ________

      – empty service module mass ________

      – propellants mass ________

      – empty capsule mass ________

      – ejected nose cone mass ________

      – max LEO/ISS pressurized cargo mass ________

      – max LEO/ISS unpressurized cargo mass ________

      – max returned cargo mass ________

      – cargo Dragon GLOW ________

      – crewed Dragon GLOW ________

      – Dragon's LAS mass ________

      – max crew life support mass ________

      – max crew+seats+spacesuits mass ________

      – max mission autonomy (days) ________

      – max Falcon-9 "dumb" payload to ISS orbit ________

      all data should be in mT (1000 kg.) or kg.

      the data of the crewed Dragon should be for a full, seven astronauts, mission

      could the "commercial" SpaceX give CLEAR data and answers to the space community and the (potential) investors?


      August 16, 2010 at 10:03 pm | Report abuse |