astronauts went into space. Mending a major accident on the ISS – 21-12-2013
Two astronauts from the crew of the International Space Station (ISS) aboard left the station and came out into space to repair the failure of one of the two stations cooling systems. They spent outside the five and a half hours. Work will continue on Monday. The whole operation could be seen in the direct transmission. read more »
before leaving NASA Americans have taken special security measures to avoid the reimposition of the accident, which took place in July. Then the Italian astronaut Luca Parmitano nearly died when his helmet was flooded with water leaking from the cooling system of the suit. W h e?mach American astronauts installed a special emergency breathing tube if the water reappeared.
coldness, discomfort and water in his helmet
“configuration problem” occurred at the end of Saturday’s work in space. Participated in the two astronauts – Rick Mastracchio and Mike Hopkins.
In the middle of the work Mastracchio had to raise the temperature in the shoes due to the significant chilling of the feet and complained of feeling unwell. After securing the old pump and tools needed for the dismantling of the men were permitted to complete the mission.
failure has been detected already in the station, when the astronauts were in the airlock. consisted in getting water to sublimator – a device that is responsible for getting rid of excess heat from the suit. cause of failure could be an action of the Mastracchio – probably inadvertently switch activated water, staying longer in
Why graphene with Polish revolutionize our lives? Expert about the benefits of this material – 22-12-2013
few days in Poland as the only country in the world, industrially produced graphene – a material that can make our lives a lot of innovation. Scientists believe that thanks to him soon manage to supplant silicon from the electronics market and thereby revolutionize the production of computers. About where graphene will still apply, as well as its amazing properties, in the “get up and stay” told Dr. Thomas Horn – physicist and science journalist. read more »
removed the pump size of a refrigerator
On Saturday, managed to complete the first stage of repair of one of the two cooling systems. Mastracchio and Hopkins have done preliminary work – they separated the wires and removed the old pump. It was not an easy task even in zero gravity – device has dimensions of refrigerators and weight 353 kg. Astronauts also prepared to mount a spare pump.
second such exit in history
due date of the next Saturday fault output has been moved to Tuesday, December 24. any third output would take place a day later and it would be the second in the history of exit into space at Christmas. The first took place in 1973 during a mission to Skylab.
However, according to The Associated Press will not need it if you work on Christmas Eve will run at the same pace as Saturday.
The sooner, the better
NASA experts believe that the pump replacement could not be put off. In the event that the ongoing failure of a defective second cooling system, you would need to evacuate the station crew.
Since failure (11 December), air-conditioning inside the station provides a second backup system. It works independently of the first, but his run made it necessary to exclude parts of the apparatus. NASA ensures that the lives of six members of the ISS crew is not at risk.
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