re: Science and humans in space
Another point that is often overlooked is that the last thing a microgravity experiment needs is to be mounted in a manned facility with a bunch of people banging around doing things and bumping into walls. Such experiments should be flown in separate facilities...perhaps man-tended ones flying in formation close enough to the ISS for easy space taxi rides over, but far enough away for safety and to avoid interferences. Experiments like space telescopes need to be as far away from clumsy people as possible.