Tune in today (Jan. 16) to bid farewell to interstellar comet 3I/ATLAS, courtesy of a livestream from the Virtual Telescope ...

Comet 3I/ATLAS, only the third interstellar object ever observed, is making its final pass through our skies, offering a rare ...

Interstellar comet 3I/ATLAS is now barreling away from the sun, never to return to the solar system. There's one more chance ...

New polarimetry data on interstellar comet 3I/ATLAS reveals bizarre refractory dust, proving this alien visitor formed in a ...

The third known visitor from interstellar space, comet 3I/ATLAS, is putting on a show that plays out in high‑energy light ...

For the first time, astronomers have captured X-ray portraits of a comet from beyond our solar system, are providing a ...

24P/Schaumasse will make its closest pass of the sun on Jan. 8, according to In-the-sky, when it will pass 109.7 million ...

NASA data reveals a dramatic blue glow from the ancient interstellar comet 3I/ATLAS. Discover why this 8-billion-year-old ...

Those concerned that 3I/ATLAS' arrival to our solar system meant that some sort of alien invasion was imminent can breathe a ...

Interstellar comet 3I/ATLAS showed measurable water activity after passing the Sun, observed by SOHO’s SWAN instrument, ...

The most striking claim about 3I/ATLAS is its estimated age range of 8-14 billion years. This analysis, led by Michele ...

Interstellar comet 3I/ATLAS's first reported sighting was on July 1, and it's going to be the closest it's ever been to Earth on Friday. Along the way, it reached several milestones leading up to what ...