In March, NASA revealed plans for SR-1 (Space Reactor-1 Freedom), a nuclear-powered spacecraft concept designed to make Mars ...

NASA’s Curiosity Mars rover took this selfie at a location nicknamed “Mary Anning” after a 19th century English ...

Curiosity has detected a surprising variety of organic molecules on Mars, including compounds tied to the chemistry of life.

NASA's Curiosity rover has found a diverse mix of organic molecules on Mars, including chemicals considered building blocks ...

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

NASA’s announcement Tuesday that it will “pause” work on a lunar space station and focus on building a surface base on the Moon was no big surprise to anyone paying attention to the Trump ...

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

The organic molecules discovered by NASA’s Curiosity rover could have been formed by life, but they could have also come from geologic processes or meteorites ...

"This experiment's never been run before on another world," said Amy Williams, an astrobiologist working on the Curiosity mission.

NASA revealed Tuesday its plans to build a permanent base on the moon. The space agency also announced a mission plan to launch a nuclear-powered spacecraft to Mars before the end of 2028. NASA is ...