How Mike Massimino 'nearly broke' Hubble during a spacewalk

Space Shuttle astronaut Mike Massimino has penned a riveting article for Esquire magazine recounting his harrowing attempt to repair the Hubble Space Telescope back in 2009. His account is downright horrifying — the stuff of spacewalk nightmares. » 9/06/13 2:40pm 9/06/13 2:40pm

What would really happen if you were exposed to vacuum?

People often ask: how realistic is the scene in 2001: A Space Odyssey where Bowman makes a space-walk without a helmet? How long could you survive in vacuum? Would you explode? Would you survive? How long would you remain conscious? » 12/08/10 2:02pm 12/08/10 2:02pm