O-ring erosion on Discovery would have disastrous effects a year later It has been 40 years since NASA launched the first dedicated Department of Defense Space Shuttle mission, after which engineers ...

In one of the tragic accidents of American space exploration, the Space Shuttle Challenger broke apart shortly after its launch on Jan. 28, 1986, killing all seven crew members who were aboard ...

SpaceX's Elon Musk said preliminary indications are that leaking fuel built up pressure in the cavity above the engine firewall.

It's been 39 years since the Challenger space shuttle, carrying seven people, took off from Florida's Kennedy Space Center, exploding in mere minutes.

SpaceX said it also will conduct an investigation into the cause of the explosion with the FAA, which licenses commercial rocket launches. While SpaceX said initial data indicates a fire developed ...