Just over four light-years away, the Alpha Centauri system holds the closest worlds beyond our own that might support life.

NASA’s Viking 1 lander set down in the Chryse Planitia region of Mars. Its identical twin, Viking 2, followed on Sept. 3 of ...

Unlike NASA's approach of launching two separate spacecraft, China reportedly plans to send its observer and impactor ...

Stream now with KPBS Passport on KPBS+ / Watch Tuesday, July 7, 2026 at 11:30 p.m. on KPBS TV. The half-hour documentary ...

NASA’s Perseverance rover has uncovered the strongest evidence yet that Mars may once have been capable of supporting life ...

Every second, the Congo River releases about 40,000 cubic metres of freshwater into the Atlantic Ocean. That makes it the ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to ...

China's Tianwen-2 mission has arrived at the quasi-moon Kamo'oalewa, which orbits the sun alongside Earth. The secretive probe will scoop up samples from our temporary companion to help uncover its ...

Viking 1 kicked off the search for Martian life 50 years ago. Now NASA’s shifting priorities are putting the quest in limbo.

Commander Randy Bresnik and three others will attempt to dock with two different lunar landers in Earth orbit, paving the way for a future moon landing. The Artemis III crew poses for an official ...

The space probe has been studying Jupiter since 2016 and just flew within about 200 miles of the surface of the ice-covered ocean moon. By Kenneth Chang Europa, the ice-encrusted moon of Jupiter, is ...

2020 is in a “dead heat” with 2016 for the hottest year on record, scientists with NASA and the National Oceanic and Atmospheric Administration announced January 14. Based on ocean temperature data ...