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Questions about the ISS (International Space Station), a habitable man-made low Earth orbit satellite whose first component was launched in 1998 and used to conduct experiments for a wide variety of research fields in a microgravity environment.

7 votes

What kinds of things have been tossed out of the ISS?

To add to the list, don't forget the large Ammonia Tank that Clay Anderson jettisoned in his EVA (23 Jul 2007): Source: The Living Moon Further jettison 27th January; Glover has just tossed the Colum …
Brian Tompsett - 汤莱恩's user avatar
12 votes

If there's a hole in Zvezda module, why didn't all the air onboard immediately escape into s...

It is easy to conduct simple home experiments, or even do them as thought experiments to determine the answer to this question. Think of a child's balloon. Inflate the balloon with air whilst holding …
Brian Tompsett - 汤莱恩's user avatar
10 votes
2 answers
852 views

Does any site track the mass of the ISS?

Watching the daily ISS live broadcast from NASA the PRO mentioned the specific mass of the ISS complex (today) and what it would be when the Soyuz leaves shortly. … Its obviously important for repositioning burns to know the mass of ISS any time. Is this made available on a continuous basis (via NASA, ESA, Roscosmos etc)? …
4 votes

Why isn't a centrifuge used for astronauts on the space station?

In the ISS this compression stress is simulated with ample exercise which when combined with a calcium and vitamin D enriched diet provides an element of compensation. …
Brian Tompsett - 汤莱恩's user avatar
12 votes
Accepted

How are hatches set up in the common berthing mechanism (CBM)?

There are several kinds of hatches on the ISS to permit many different kinds of vessels and modules from different sources to connect to the station. … The ISS is equipped with both active and passive CBM nodes. …
Brian Tompsett - 汤莱恩's user avatar
17 votes
Accepted

How does ISS protect astronauts from Coronal Mass Ejections?

bricks Water storage bags attached to the walls making a "water wall" High densities of hydrogen are good at radiation protection, and water is a good hydrogen source that needs to be stored on the ISS … The radiation protection was modelled as part of the design: Future deep space missions propose to utilise water storage walls as part of their design following from experiences on the ISS. …
Felix Dombek's user avatar
29 votes

What is the difference between docking and berthing on the ISS?

The berthing and docking ports on the ISS are of different shapes and dimension and can thus be used to transfer different volumes of cargo. …
Basil Bourque's user avatar
21 votes
Accepted

Can X-37B dock with the ISS

Yes and no. The current X-37 as flown by the US Air Force is not equipped with any docking ports (PMA, CBM or APAS) as described by @geoffc, nor does it have an attachment for the SSRMS (aka Canadarm) …
Brian Tompsett - 汤莱恩's user avatar
7 votes
1 answer
336 views

Will Soyuz TMA-16M have the most experienced crew?

I was looking at the names of the crew for Soyuz TMA-16M (for the year long expedition) and I was thinking "wow that's an experienced crew!". I looked up their combined experience and it shows as: …
6 votes

Will Soyuz TMA-16M have the most experienced crew?

I've crunched the numbers and can answer; my gut feeling was good, and in all 299 manned launches, no crew has a greater combined amount of time in space. My top 10 crew experience table is: Soyu …
Brian Tompsett - 汤莱恩's user avatar