Starliner landed safely, but its departure was not entirely smooth. The spacecraft experienced "an unexpected crew module propulsion failure," Isaacman said, and lacked "fault tolerance" in its ...

(CNN) - Wednesday marks the 40th anniversary of the Challenger space shuttle explosion. It was a moment of collective grief on Jan. 28, 1986, when the space shuttle exploded during a live broadcast.

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 ...

AKRON, Ohio — This week marks 40 years since the Space Shuttle Challenger disaster, a tragedy that stunned the nation, halted America’s space program, and forever changed the lives of families, ...

The morning of the Space Shuttle Challenger explosion 40 years ago still remains the coldest Jan. 28 ever on the Treasure Coast. In 1986, the Space Shuttle Challenger and crew were lost in an ...

CAPE CANAVERAL, Fla. — This week marks 40 years since the space shuttle Challenger broke apart shortly after liftoff, a tragedy that changed how the United States approaches space travel. On Jan. 28, ...

Four of the astronauts selected for the Space Shuttle Challenger mission in 1986 sit in the shuttle mission simulator (SMS). From left to right: Michael J. Smith, Ellison S. Onizuka, Judith A. Resnik ...

Add Yahoo as a preferred source to see more of our stories on Google. 28th January 1986: An abstract smoke pattern after the space shuttle Challenger explosion, Kennedy Space Center, Florida.Dave ...

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 ...

DENVER — Most people who were around in 1986 remember where they were, and what they were doing when the Space Shuttle Challenger exploded. The accident killed the seven crew members, and halted ...