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

On5, 2006, NASA's Stardust spacecraft returned to Earth to drop off a capsule that contained the first samples of a comet and ...

On05, NASA launched its Deep Impact mission to crash into comet Tempel 1, also known as 9P/Tempel. Two spacecraft were ...

Comet Nishimura came into NASA's STEREO-A spacecraft's field of view. The solar wind was interacting with the tail of the ...

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

Recently discovered Comet C/2025 R3 (PanSTARRS) will make its closest approach to the sun and Earth in late April and could ...

Scientists found new evidence (or lack thereof) disproving the conspiracy theory that interstellar comet 3I/ATLAS is alien ...

A delay in one European Space Agency mission is creating an opportunity for an earlier, and more capable, launch for another ...

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

The interstellar comet 3I/ATLAS arrived looking like a routine icy visitor and then promptly started shredding the rulebook ...

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

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