The Challenger shuttle disaster that killed 7 crew members was 40 years ago. What happened and how they're being remembered.

A catastrophic failure occurred 73 seconds after liftoff as the shuttle emerged from “Max-Q,” the period of highest ...

40 years ago, shuttle Challenger exploded over Florida in deadly tragedy

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

40 years after the space shuttle Challenger disaster, spaceflight remains far from routine

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 ...