A prototype ion engine that uses lithium vapor as a propellant has aced its first tests, achieving 25 times more power than ...

NASA just tested a blazing-hot plasma engine that could help carry humans to Mars.

There is something quietly powerful about seeing Earth from deep space. It feels distant, almost unreal, like looking at a ...

Voyager 1 just powered down a nearly 50-year-old instrument to stay alive in deep space. The spacecraft is running critically ...

Inside a long vacuum chamber in Southern California, a spacecraft engine glowed white-hot as it pushed toward a level of ...

For years, nuclear propulsion sat in the same category as so many ambitious space ideas, impressive on paper, always a few ...

NASA’s Artemis II mission lifted off from the Kennedy Space Center in Florida on April 1, sending four astronauts on a 10-day ...

The journey back to deep space began with NASA's first crewed mission under the Artemis program. Artemis II was a key step ...

Think of it like a Google Maps for space. Unlike in 1972, you don’t have to be a high-tech agency to follow the latest lunar mission.

NASA races to build a $20 billion lunar base as China and Russia advance moon ambitions, with experts warning China holds the ...

The rock is nicknamed "Atacama." ...