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

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 tail of Interstellar Comet 3I/ATLAS is seen in the imagery captured by the Gemini Multi-Object Spectrograph (GMOS) on ...

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

An alien comet is slipping away forever. For a few hours only, a livestream will show its final cosmic goodbye.

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

“new data indicates that the periodic wobble of the jet around the rotation axis did not change during perihelion” ...

The CIA's Glomar response to a records request about the interstellar object 3I/ATLAS has sparked speculation and debate over ...

Comet 3I/ATLAS, a rare interstellar visitor, is making its last appearance this weekend. Observers will need powerful telescopes to witness this final farewell.

However, the Italy-based The Virtual Telescope Project will give one last live peek at the exocomet as it cruises toward the ...

A Mars spacecraft has now been AWOL for more than a month. But NASA hasn't given up hope of restoring contact with the MAVEN ...