On January 28, 1986, Space Shuttle Challenger broke apart just 73 seconds after liftoff. Pilot Michael Smith's final words ...

NASA’s powerful Launch Abort System — literally designed to outrun the debris from an exploding rocket and save the lives of astronauts should something go wrong during launch — is the result of years ...

Dozens of startups working on data centers, mining and pharmaceuticals are hanging on Elon Musk's long-stalled megarocket.

If NASA’s colossal new moon rocket, slated to launch with astronauts for the first time as soon as tomorrow, explodes on the pad or breaks up as it accelerates through the atmosphere, the space agency ...