General Atomic's new nuclear fuel was subjected to the maximum heat of a reactor for 20 minutes in the latest tests.

A SpaceX test flight has ended in failure after an upgraded Starship rocket exploded over the Atlantic. SpaceX, Elon Musk’s ...

Angry Astronaut and Nextbigfuture commenter are making the case that SpaceX and Elon Musk must switch to nuclear thermal rockets to colonize Mars. I will ...

One just launched the world’s biggest rocket, with mixed success. The other makes small model rockets for hobbyists, and it's ...

General Atomics Electromagnetic Systems (GA-EMS) has successfully tested the nuclear fuel that may one day propel and power the spacecraft of the future. The trials verify that the fuel can survive ...

The seventh launch of SpaceX’s Starship rocket ended in disaster yesterday after the craft exploded less than nine minutes ...

XI'AN -- China successfully completed three ignition tests for liquid oxygen-kerosene engines on Sunday, according to the China Aerospace Science and Technology Corporation (CASC). This marks the ...

Elon Musk’s SpaceX found a likely cause for what’s to blame for his 400-foot-tall Starship breaking apart in space after ...

Blue Origin has shared a video recap of last week's maiden launch of the New Glenn, including dramatic close-up footage of the rocket leaving the launchpad.

Flawed rocket launches by SpaceX and Blue Origin still leave both companies in position to dominate the space sector.

SpaceX has caught its Starship rocket back at the pad following liftoff. But the spacecraft launched on top Thursday was destroyed.