CAPE CANAVERAL, Fla. — Wednesday marks 40 years since the NASA space shuttle Challenger broke apart after lifting off, killing all seven people on board off the coast of Cape Canaveral, Florida.

Forty years ago today, Americans were stunned, shocked and saddened when the Challenger space shuttle exploded 73 seconds after liftoff on a cold, cloudless day in Florida. A booster leak ignited the ...

HOUSTON (CNN) — NASA’s Space Shuttle Challenger lifted off 40 years ago with an unusual crew. In addition to six astronauts, the mission took flight with a teacher on board. Christa McAuliffe, the ...

Add Yahoo as a preferred source to see more of our stories on Google. Most people who were around in 1986 remember where they were, and what they were doing when the Space Shuttle Challenger exploded.