Astronomy

The century-old mystery of dark matter — the invisible glue thought to hold galaxies together — just got a modern clue.

Astronomers have unveiled a new catalog of massive galaxy clusters, revealing new insight on the evolution of the universe.

Chiron is forming a ring system, and scientists seem to have caught the action.

The super-Earth exoplanet is "one of the best candidates in the search for an atmospheric signature of life."

A new image from NOAA's GOES-19 satellite has captured a rate celestial cameo: Earth itself appearing in the view of the spacecraft's solar coronagraph.

Astronomers have sighted Betelgeuse’s mysterious companion — and it’s turning out to be full of surprises.

New satellite imagery from the European Space Agency reveals nearly four decades of dramatic ice loss for two of Patagonia's largest glaciers.

Ancient explosive volcanic eruptions on Mars could help explain mysterious hints of buried ice from the Red Planet's equator, a new study finds.

At the end of October Europa Clipper will fly in line with 3I/ATLAS’ ion tail — but will any of the charged particles reach the spacecraft, and will the spacecraft be ready to receive them?