Celebrating America's 250th birthday, Space.com looks back at what our understanding of space was like in 1776 and what major ...

Canadian astronaut Jeremy Hansen announced Monday that he is stepping down from his full-time role as an astronaut, months ...

NASA's new alien-hunting telescope, the Habitable Worlds Observatory (HWO), will be serviceable out in space (and it will ...

A 2020 satellite photo shows off the ethereal beauty of submerged sandbanks and seagrass beds in the Great Bahama Bank. This ...

Live updates from SpaceX’s Sunday morning Starlink 10-50 mission that launched a Falcon 9 rocket from Cape Canaveral Space ...

The Canadian Space Agency’s Jeremy Hansen, who captivated the world during the historic moon mission, said Monday he’d soon ...

Quasars — the brightest objects in the universe — are powered by supermassive black holes at the heart of early galaxies.

NASA is officially calling for research participants for the agency’s next simulated deep space mission set to start in August 2027.

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Here’s how to see the year’s most-intense meteor shower, a blood-red lunar eclipse and Saturn’s refreshed rings this summer.

Exoplanet atmospheres have become prime targets for astrobiologists in the search for life beyond Earth. This is because exoplanet surfaces can't be directly imaged yet, so astronomers must get ...

The planet should not have survived the star's red giant phase—which sees a star balloon to more than 100 times its original ...