- When the International Space Station's crew departs this fall, the station could be left unmanned. Flights there have been halted until the cause of last week's space freighter crash is determined. Full story:
* As shuttle era ends, questions loom for shrinking astronaut corps... 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:
