Thirty years ago today, NASA suffered a spaceflight tragedy that stunned the world and changed the agency forever.
On Jan. 28, 1986, the space shuttle Challenger exploded just 73 seconds after blasting off from Florida's Kennedy Space Center, killing all seven astronauts on board — including New Hampshire educator Christa McAuliffe, a civilian who had been selected to fly via NASA's "Teacher in Space" program.
18:00 Life In Space Twists and Turns Muscles, Gives Severe Back Pain, New Study On Astronauts Reveals13
18:00 Yoga In Space Could Be Must For Astronauts15
02:50 Cubs defeat Dodgers, 5-0, to advance to World Series for first time since 194543
17:55 Images Indicate European Mars Lander Destroyed: Space Agency12