Add Yahoo as a preferred source to see more of our stories on Google. On July 26, 2005, the space shuttle Discovery launched on the first "Return to Flight" mission following the Columbia disaster ...

On this date, Jan. 28, 1986, space shuttle Challenger exploded just 73 seconds after liftoff from Kennedy Space Center, killing all seven crew members. Two O-rings in the right solid rocket booster ...

For 73 seconds, a crowd of excited Americans looked to the sky in wonder and awe as they waved goodbye to the crew aboard ...

That kind of strong leadership and great teamwork are the real safety systems of spaceflight.

Most people will never forget where they were when the Space Shuttle Challenger exploded 73 seconds after liftoff on January 28, 1986. Today marks the 39th anniversary of that tragic event, which took ...

Read full article: INTERACTIVE: The NASA astronauts and employees who died in service to U.S. space exploration January 28th is a Day of Remembrance honoring the lives of the crew and teacher aboard ...

The crew of Space Shuttle Discovery’s Return to Flight mission (STS-114) will return to NASA’s Kennedy Space Center (KSC) at 11:30 a.m. EDT Friday, July 22. The seven astronauts, led by Commander ...