January 28, 2026, marks 40 years since the Space Shuttle Challenger exploded 73 seconds after launch, killing all seven crew members. Explore NASA's Day of Remembrance, Bob Cabana's reflections, ...
Former astronaut and professor Terry Hart is opening up 40 years later about the friends and colleagues he lost on board the ...
NASA’s 1986 Challenger mission was intended to inspire students to consider a future in space. The crew’s family is continuing their legacy.
Four decades after Challenger, the disaster’s lessons continue to guide how humanity explores space responsibly.
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 ...
It has been exactly 40 years since the nation looked skyward in hope, only to witness one of the most searing tragedies in ...