Astronaut Steve L. Smith, (click here) payload commander, retrieves a power tool while standing on the mobile foot restraint at the end of the remote manipulator system. Photo/NASA NASA has never incurred a tragedy as it appeared in "Gravity" and I am sure they have looked at those scenarios before they launched the first ISS mission. But, NASA cannot deny those scenarios are based in the reality of space physics. The antidote to "Gravity" is to realize space is a dangerous place and the only way to completely protect astronauts from alternate realities is to build a Star Trek like WayStation. A place human beings actually have a structure strong enough to protect them from accelerated debris or objects. That, however, is a very expensive deal and is military focused which is nonsense. Private industry could never afford to build such a station in space.