Interstellar object 3I/ATLAS has developed a rare and persistent anti-tail that appears to point towards the sun. This is a ...

I/ATLAS: The mysterious interstellar comet 3I/ATLAS has become active ahead of its close encounter with Earth, drawing global ...

The colour change reveals ancient carbon chemistry, offering rare insights into material formed beyond our solar system.

A newly discovered interstellar comet will be the topic of an open house Dec. 14 at the Indiana University Kokomo Observatory ...

To catch the Geminids peak, look to the eastern sky all evening on Dec. 13 and Dec. 14. The meteors will appear near the bright planet Jupiter. With the darkest possible skies, you could see up to 120 ...

Astronomers tracking the interstellar comet known as 3I/ATLAS report that the object has brightened markedly and developed a faint green glow as it approaches its closest pass by Earth, sharpening ...

I/ATLAS comet is the 3rd-ever object discovered that originated from outside our solar system. It's not a threat, approaches ...

The interstellar comet 3I/ATLAS reaches its closest point to Earth on Dec. 19, allowing close study with no threat to the ...

Gemini North observations reveal interstellar comet 3I/ATLAS has brightened and developed a green coma after perihelion, ...

Astronomers have followed 3I/ATLAS since its discovery on July 1. Hubble photographed it on July 21 from 277 million miles away, revealing a teardrop-shaped cloud of dust wrapped around its icy core.

New images taken with the Gemini North telescope in Hawaii confirm that the interstellar comet 3I/ATLAS has gotten brighter ...

Gemini North captured new images of Comet 3I/ATLAS after it reemerged from behind the sun on its path out of the solar system ...