A science-focused look at a possible cause behind the Challenger disaster ...

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 ...

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 ...

This browser does not support the Video element. Seven astronauts were killed in the 1986 space shuttle Challenger disaster. Because a teacher was aboard, millions of schoolchildren watched the event ...

It's been 40 years since seven people lost their lives when the Challenger space shuttle exploded minutes after launching from Florida's Kennedy Space Center. The disaster claimed the lives of Christa ...