It's been 40 years since the space shuttle Challenger exploded just after takeoff. Geoff Bennett speaks with science correspondent Miles O'Brien, who covered the aftermath of the disaster, about how ...

Add Yahoo as a preferred source to see more of our stories on Google. Students within the Dayton Public School system are premiering the inaugural documentary highlighting the Challenger Learning ...

Forty years ago, the Space Shuttle Challenger exploded on live television just 73 seconds after lifting off. All seven astronauts aboard died, plunging the nation into mourning. On our video podcast ...

Forty years ago, the NASA space shuttle Challenger exploded 73 seconds after liftoff, killing all seven crew members. Among the seven crew members were five NASA astronauts, as well as a payload ...