The Space Shuttle Challenger disaster on January 28, 1986, killed all seven astronauts on board, but disturbing details later ...

Earlier this month, NASA successfully evacuated four crew members from the International Space Station following a medical emergency. The four astronauts — two from the United States, one from Japan ...

NASA's space shuttle Challenger completed 10 missions before it broke apart during a launch in 1986, killing seven astronauts.

Jane Smith-Wolcott, center, widow of Challenger pilot Michael Smith puts a flower on a memorial during NASA's Day of Remembrance for the 40th Anniversary of the Challenger tragedy at the Kennedy Space ...

Forty years after the Challenger disaster, NPR explores the engineers' last-minute efforts to stop the launch, their decades ...

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 ...

The Space Shuttle Challenger exploded 40 years ago, on Jan. 28, 1986. The disaster was watched live on CNN across the globe and in person by family and friends of the crew and schoolchildren. A ...

CAPE CANAVERAL, Fla. (AP) — Families of the astronauts lost in the space shuttle Challenger accident gathered back at the launch site Thursday to mark that tragic day 40 years ago. All seven on board ...

Add Yahoo as a preferred source to see more of our stories on Google. It's been 40 years since the space shuttle Challenger exploded shortly after liftoff Jan. 28, 1986, in Florida, killing all seven ...

Seven astronauts were killed in the 1986 space shuttle Challenger disaster. Because a teacher was aboard, millions of schoolchildren watched the event live in school. Forty years later, many of those ...