ALMA captures surprising activity in comet C/2014 UN271, Bernardinelli-Bernstein comet, the largest ever detected.

NASA's Voyager 2 spacecraft captured dark streaks produced by geysers visible on the icy surface of Triton's south polar ...

Astronomers have yet to find irrefutable proof for any natural satellites of exoplanets—so-called exomoons—but as ...

The enigma of the intruder about the same size as Manhattan Island is making astronomers rethink what they know about cosmic ...

Astronomers have spotted a free-floating ‘rogue’ planet, named Cha 1107-7626, that is going through a massive growth spurt, ...

WASHINGTON (Reuters) -Just as Earth orbits the sun, most planets discovered beyond our solar system orbit a host star.

Clean, renewable energy has officially surpassed coal as the leading source of electricity production globally.

A stunning new video, made from Mars Express orbiter data, allows you to soar over a gigantic maze on the Red Planet in ...

Juno does not fall into those protected categories, and was also zeroed-out on the President's fiscal year 2026 budget ...

Amir Siraj and team propose Planet Y, a possible unseen planet influencing Kuiper Belt object orbits. Vera C. Rubin ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

Astronomers have observed a planet that in some ways behaves more like a star — including a massive growth spurt unlike ...