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Spacewalking astronauts install new door for visitors

This graphic shows how the International Docking Adapter (shown in yellow) fits on the front of the space station’s old shuttle docking port, along with the myriad cables that will route power and data to and from the module. Aside from missions to ISS, SpaceX has already set out plans for their journey to the red planet. The space agency initially resisted training American multimillionaire Dennis Tito, the first man to pay for his passage to the ISS.

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The second docking adaptor is expected to be launched in late 2017, Navias said. But that mission failed when the launch vehicle disintegrated about two minutes after launch. Williams also congratulated their team, saying that they have opened up a new chapter of the story of ISS. Today’s spacewalk will be his fourth.

It’s the first spacewalk for Rubins, a biologist specializing in infectious diseases now on her first spaceflight. NASA also assessed and fully approved SNC’s detailed approach for getting the Dream Chaser Cargo System to the International Space Station.

It’s not clear which commercial entity could be a contender to take ownership of ISS, which is a joint program between space agencies from the US, Russia, Japan, Europe and Canada, each of which has tipped billions into the project.

If time is available, the spacewalkers will tie down the brake handle on an equipment cart attached to rails on the forward side of the station’s solar power truss and carry out a photo survey of a physics instrument known as the Alpha Magnetic Spectrometer. It took two hours to tie it down close to the ISS.

In about four hours, Williams and Rubins will wrap up their work installing the first IDA. One sign of the uptick is the packed 2016 schedule for Cape Canaveral, where private companies, the military, ISS cargo loads, and NASA operations are jostling for time on the launch pad.

Launching astronauts from the U.S.. Five years later, Williams and Rubins are laying the foundation for those flights to start again.

Installation of the IDA means that the ISS will be able to accommodate different space taxis, including SpaceX and Boeing vehicles. “We’ll look at it as we do with all these kind of things-we’ll trade it against whatever risk that might put into the program, first and foremost the risk to our crew onboard, and the station itself”. The number of crew members aboard the station has, more or less, remained steady since then, with Russian Federation providing half the crew while NASA and its global partners provide another three astronauts.

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One research area of deep interest to Nasa might be how to minimise the harmful effects of space on the human body – from muscle and vision degradation to radiation exposure – as a way to make longer missions feasible. Do you think we will actually send people to Mars within a few decades?

Russia may cut the number of cosmonauts on the ISS			 0					By		Jonathan Edwards		 		on				16 August 2016	
				Science