The extreme conditions of a long underwater mission are similar to those of space, ... This mission presents aquanauts and physicians with an unprecedented opportunity to test state-of-the-art remote medical techniques in real-time and real-life situations. Someday, these techniques could be used in long-duration, manned space flights.

Despite plenty of progress, tissue engineering has not achieved tremendous clinical success or commercial success.

It's not a matter of how fast that they work on it. It's a matter of the precision that they use and the precision tools that they work. And there is a productivity requirement because the soldiers up front are waiting for the soldiers to return, whether for Medivac aircraft or fire power support.

But, it was simple, painless and when it was over with I couldn't tell what was done. It was just that mask, that steel harness they put over your head.

A lack of transparency they have had and the poor relationship they have with the media exacerbates the problem.

Wants to move on with his career.

I keep smiling, but it is hard to explain without using Hannibal Lecter.

Star Trek always presented an optimistic view of the future. It showed us a world in which people were not going to destroy themselves with war, a view of different people and cultures coming together and celebrating those differences.