miercuri, 6 iulie 2011

As shuttle era ends, questions loom for shrinking astronaut corps

- When astronaut Garrett Reisman returned from an 11-day space shuttle mission last May, he knew he was headed to the back of the line. If he wanted to return to orbit, he would have to wait at least five years for a second tour aboard the international space station, which he had called home for 95 days in 2008. Full story:

* NASA Internal memo: Family/Personal Preparedness Plan... US Air Force Offers Glimpse Of 'Doomsday' Plane... Edge of Solar System Filled with Bubbles, NASA Says... U.S. Must Be Ready to Meet Asteroid Threat, White House Science Adviser Says: