Every astronaut flew into space for a living. But while NASA has not solved the security problems, I would not put me back into a shuttle - and no other astronaut. The confidence is shaken.
Ulrich WalterISS leak is just like on a ship, there are bulkheads that, if there's an emergency, can separate an area that's no longer airtight from the undamaged portion of the station. The former Russian space station Mir actually did once develop a leak, after colliding with an unmanned cargo ship. Everyone survived.
Ulrich WalterAt least believe this many humans, who are interested obviously in this topic. Many of them visited me after lectures and meetings, in hope that I can give concrete answers to their questions. For it was clear: If that does not know it, who is to then know it?
Ulrich WalterA person moving in zero gravity feels a pitiful helplessness. One wrong move and you find yourself spinning wildly. Everyone becomes a baby again in outer space, laboriously learning how to walk.
Ulrich Walter