Forty years ago, Americans were shocked when the space shuttle Challenger exploded 73 seconds after it launched on a chilly ...

Wednesday marks a somber anniversary in American history. 40 years ago, seven astronauts were killed when Space Shuttle ...

Challenger exploded 73 seconds after liftoff while carrying seven people, including "Teacher in Space" participant Christa McAuliffe. Nobody survived the launch on Jan. 28, 1986 from NASA's Kennedy ...

"I lost my father," Alison Balch said, "but to everyone else, they felt like they lost somebody also." ...

Jan. 28, 1986, 7 spacefarers were killed when shuttle Challenger exploded midair after launching from Kennedy Space Center in Florida ...

It's been 40 years since the Challenger space shuttle, carrying seven people, took off from Florida's Kennedy Space Center, ...

Their eyes were watching. Some knew something was wrong. Others were slow to realize. Soon everyone came to grief. Forty ...

Because a teacher was going to space, millions of schoolchildren watched the Challenger lift off on Jan. 28, 1986. It ...

The loss of the Space Shuttle Challenger and its seven brave astronauts 40 years ago inflicted a generational wound on the ...

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

NASA observed its annual Day of Remembrance Thursday to commemorate the astronauts killed in the Apollo 1 and space shuttle ...