A couple months back, astronomers officially confirmed the existence of “Betelbuddy,” Betelgeuse’s long-suspected companion ...

Comet 3I/ATLAS is warming up as it approaches the sun, causing a jet to emerge. The jet is visible in a dramatic new image.

Today's ESA/Hubble Picture of the Week features a galaxy that Hubble has captured multiple times over more than 20 years. The ...

A newly released image from the Hubble Space Telescope reveals a glowing ring of star formation in the heart of NGC 6951, a ...

NASA's silence on interstellar comet 3I/ATLAS has sparked online theories after scientists observed bizarre tail shifts and ...

Just in time for Hallowe'en in 2024, Hubble and JWST captured an image of two interacting spiral galaxies — IC 2163 and NGC ...

If there is one star that serves to announce the arrival of fall as the leaves have begun to turn, unquestionably that title ...

On 29 October 2025, 3I/ATLAS will reach its closest distance to the sun. Should we worry? Here's what experts say.

I/ATLAS puts the Planetary Defense Network on watch. NASA and ESA say no threat as IAWN drills tracking, while Harvard’s Avi Loeb raises an alien-origin idea.

NASA has activated a global planetary defense group to study a massive interstellar object exhibiting strange, possibly artificial characteristics ...

The Habitable Worlds Observatory (HWO) will be the first telescope specifically engineered to identify habitable, Earth-like ...