Forty years ago, the world watched in horror as NASA's space shuttle Challenger exploded mid-air, killing all seven crew members aboard. The disaster occurred at what was then the pinnacle of the U.S.

SAN DIEGO (KGTV) - A La Jolla High School teacher who was a finalist for the Teacher in Space program reflects on the 40th anniversary of the Challenger disaster and how the tragedy shaped her mission ...

She was one of several students interviewed by the Orlando Sentinel on the day Challenger exploded, killing all seven of its crew 73 seconds after liftoff from Kennedy Space Center on the 25th mission ...