Just 14 days ago, amid the mundanity of East Coast commutes and West Coast alarm clocks, NASA’s Artemis II mission gave ...

Astronauts and robotic spacecraft have captured breathtaking photos of Earth from space for decades. See the best images.

Even at a glance, the planets in our solar system are wildly diverse. Huge and small, airless and densely packed with ...

NASA unveiled a new telescope on Tuesday to scan vast swaths of the universe for planets outside our solar system and probe ...

Scientists have discovered unexpected water-ice clouds on a distant, Jupiter-like exoplanet, challenging current atmospheric ...

The Artemis II mission, which took four US astronauts around the Moon and to a record-breaking distance from Earth, was a ...

The search for life beyond Earth has followed a familiar logic: find a rocky planet orbiting in the habitable zone, where ...

An image of Pluto taken by NASA's New Horizons spacecraft on July 13, 2015. The planet was first discovered by Clyde Tombaugh, who graduated from high school in rural Kansas and went on to earn his ...

Unfortunately for science fiction fans, desert worlds outside our solar system are unlikely to host life, according to new ...

The chemistry that built life on Earth may have begun in deep space, according to a new study. The discovery could help to unravel one of science's central questions: what are the origins of life's ...

"Please make Pluto a planet again. I really want it to be a planet again," Kayla begins, eliciting a response from the NASA ...