Add Yahoo as a preferred source to see more of our stories on Google. Forty years ago, the world watched in horror as NASA's space shuttle Challenger exploded mid-air, killing all seven crew members ...

On the morning of January 28, 1986, seven crew members were killed when the space shuttle Challenger broke apart a little over a minute after it launched. Those killed included five NASA astronauts, ...

Col. Eileen Collins was the first woman to pilot and command a NASA space shuttle. Collins commanded the first flight after the 2003 Columbia tragedy, which also experienced a foam-shedding issue.

The STS-51L mission clears the tower at Launch Complex 39B at NASA’s Kennedy Space Center in Florida on Jan. 28, 1986. Credit: NASA / Courtesy Sign up for the Concord Monitor’s morning newsletter for ...

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 ...