April 13, 1970: Apollo 13 Tells Houston, 'We've Got a Problem'

wired.com — Manned space flight has become so routine that it is easy to forget that it’s inherently dangerous to stuff astronauts inside a cramped capsule and blast them into the heavens on top of a Saturn V rocket. The Apollo 13 mission reminded us just how vulnerable we are. Apr 13, 2007 View in Crawl 4