NASA's space shuttle Challenger exploded 40 years ago today, killing its 7-person crew. Photos reveal Challenger's legacy.

NASA's space shuttle Challenger completed 10 missions before it broke apart during a launch in 1986, killing seven astronauts ...

What happened to Challenger? Remembering deadly disaster 40 years later

Seven American spacefarers were killed in a tragic event 40 years ago today that has become widely known as the Challenger ...

Inside NASA's space shuttle Challenger disaster that could have been stopped 40 years ago

Forty years ago, the Challenger space shuttle disintegrated just after lift-off. A small team of engineers tried to prevent ...

Space shuttle Challenger explosion remembered, 40 years later

The space shuttle Challenger explosion was a defining moment of the 1980s. Whether you were watching on TV or in person, ...