Astronaut collapses during ceremony (AP)

HOUSTON - An astronaut from the space shuttle Atlantis collapsed twice Friday during a welcome home ceremony, a wobbly return that officials attributed to the adjustment from 12 days at zero gravity. Heidemarie Stefanyshyn-Piper left the hangar at Ellington Field through a side door but was not taken to a hospital. Officials said she was doing fine. Piper, fifth of the six astronauts to speak, appeared to be confused before her legs buckled during her address. NASA " /> SEARCH News | News Photos ...