Forty years ago, the NASA space shuttle Challenger exploded 73 seconds after liftoff, killing all seven crew members. Among the seven crew members were five NASA astronauts, as well as a payload ...

It was the morning of Jan. 28, 1986, when the Space Shuttle Challenger launched from NASA’s Kennedy Space Center in Cape Canaveral, Florida — a moment that would soon become the nation’s worst tragedy ...

The two solid rocket boosters flew in different directions as the external fuel tank became a fireball.(AP: Bruce Weaver / File) Forty years ago, the Challenger space shuttle disintegrated just after ...

Bob Ebeling was anxious and angry as he drove to work on the morning of Jan. 28, 1986. He kept thinking about the space shuttle Challenger, cradled on a Florida launchpad 2,000 miles away. Ebeling ...

At least two Challenger astronauts are believed to have survived the shuttle's explosion, enduring a harrowing 2-minute, 45-second descent before impact ...

Forty years ago, Space Shuttle Challenger disintegrated 73 seconds into its flight, killing its crew of seven and exposing the management culture and decision-making process that led NASA to launch on ...

An excited nation watched with hope—that quickly turned to shock—as the space shuttle Challenger exploded just 73 seconds into its ascent on January 28, 1986. Unbeknownst to NASA engineers and the ...