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The nearest world that might host life is just 4.2 light-years away — but at the speed of the fastest spacecraft humanity has ever flown, the trip would take 75,000 years ...

Just over four light-years away, the Alpha Centauri system holds the closest worlds beyond our own that might support life.
Proposition 206

Election results, 2016

Republicans claimed major victories at the federal level on November 8, 2016, winning the presidency and maintaining control of both the U.S. House and U.S. Senate. Although Democrats picked up two ...

Skywatch: As Viking mission anniversary looms, the search for Martian life lives on

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

China's Asteroid Defense System Is Gearing Up To Deflect Its First Target

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

Osiris REx: Countdown to Launch

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

China's space probe reaches asteroid after 1-billion-kilometer chase for first sample return

China's Tianwen-2 space probe, which is set to bring back samples from an asteroid for research, has reached its target after ...

NASA’s Perseverance rover finds strongest evidence yet of potential ancient life on Mars

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

Congo River releases 40,000 cubic metres of freshwater into the Atlantic every second. Scientists trace where it goes

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

Daring rescue mission launches to save a 3,200-pound NASA observatory from an untimely end

A first-of-its-kind mission launched Friday in the hopes of preventing NASA’s Swift Observatory from dropping out of ...

Harvard professor with polarizing alien theories is picked to lead Trump administration UFO council

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

China's secretive Tianwen-2 probe arrives at Earth's 'quasi-moon' ahead of historic landing attempt

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 ...