NASA’s TESS tracked the interstellar comet during a special observation period from January 15 to 22, 2026.

The interstellar visitor may still have a few things to tell us before it leaves our solar system.

I/ATLAS is the third interstellar visitor ever to visit the solar system having been formed around a distant star.

Tune in today (Jan. 16) to bid farewell to interstellar comet 3I/ATLAS, courtesy of a livestream from the Virtual Telescope Project featuring live views of the enigmatic visitor as it continues its ...

Scientists have found new evidence suggesting that interstellar 3I/ATLAS is not an alien spaceship, as one conspiracy theory ...

NASA’s TESS spacecraft tracked interstellar comet 3I/ATLAS in January, capturing data on its motion, brightness, and rotation before it left the solar system ...

C/2024 E1 (Wierzchos) brightened significantly ahead of its close approach to the sun.

After years of speculation, scientists finally believe they have figured out the crystal conundrum thanks to new imaging from ...

There's no telling what will gain traction on social media, but one conspiracy theory has gained enough traction for NASA to make a statement.