Rotating detonation rocket engines work differently than traditional rockets to maximize thrust while using less fuel—an ...

Private space company Astrobotic annouced the longest hot fire test of a rotating detonation rocket engine (RDRE), 300 ...

Jeff Thornburg helped turn a government research project into SpaceX’s most powerful rocket engine. Now, he’s trying to do the same thing at his startup Portal Space Systems, which is taking an idea ...

The four Artemis II astronauts struggled to describe the view and overall experience of flying around the moon's far side and ...

The four astronauts aboard the Orion spacecraft are heading to the Moon after completing the critical engine burn that ...

Artemis II lifted off from Launch Pad 39B at Kennedy Space Center in Florida on Wednesday, sending four astronauts on a ...

The agency has a lot riding on this historic mission—literally and figuratively. Let’s hope it doesn’t end in catastrophe.

Artemis II mission is set to launch at 6:24 p.m. ET from Kennedy Space Center. The mission will send a crew of four ...

Former SpaceX engineer Jeff Thornburg has raised 50 million dollars for his startup Portal Space Systems, aiming to revive NASA's solar thermal propulsion concept and develop faster, more efficient ...

NASA’s Artemis II SLS (Space Launch System) rocket lifted off from Launch Complex 39B in Florida at 6:35 p.m. EDT, marking the start of a historic journey into deep space.

TIME spoke to Congresspeople, scientists, and more about NASA's 10-day lunar mission.

With an exhilarating launch behind them, NASA's Artemis II astronauts are turning their attention to the next big challenge of their historic mission: a "crazy first day" in space. The crew is ...