Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

Astronomers are abuzz with the discovery of a rogue planet, 2MASS J05325346+0919037, which is set to pass within 0.05 ...

"This finding is the first direct evidence of water’s interstellar journey from clouds to the materials that form planetary ...

Could a lonely planet wander aimlessly through the restless galaxy change the subtle dance of gravity within our solar system ...

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

Comet Lemmon, a rare astronomical event that won’t happen again for 1,000 years, is set to light up our skies later this week ...

It will be a while before you can see it for yourself, however. Halley’s comet was last visible from Earth in 1986, meaning ...

Two bright green comets are streaming through the skies and are visible to skygazers in the Northern Hemisphere. Comet Lemmon ...

Using the James Webb Space Telescope (JWST) and the Atacama Large Millimeter/sub-millimeter Array (ALMA), an international ...

Late October offers a meteor shower generated by Haley's Comet plus a once in a lifetime comet that streaks by Earth every ...

Comet Lemmon will have its closest brush with Earth on or around Tuesday, Oct. 21. Comet SWAN should have its flyby with ...