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

The interstellar object 3I/ATLAS has gathered significant scientific attention, and soon it will reach its closest point to ...

The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How different will it look when it reappears on the other side?

Two space probes, Hera and Europa Clipper, are ideally positioned to fly through the debris trail of interstellar comet ...

Recently discovered interstellar comet 3I/ATLAS have been captured using the European Southern Observatory's Very Large ...

Astronomers are tracking a newly discovered interstellar visitor called 3I/ATLAS, and early research suggests it may be unusually massive. The comet was first spotted on July 1, 2025, by the ATLAS ...

Spotted by the NASA-funded Asteroid Terrestrial-impact Last Alert System (ATLAS) on July 1, the third interstellar visitor is ...

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.

Mysterious Interstellar Comet 3I/ATLAS, a rare visitor from beyond our Solar System, will make its closest approach to Earth ...

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 ...