It came from outer space. Interstellar space, to be precise. From somewhere beyond the influence of our sun, possibly from ...

Today is one astronomers, stargazers and alien conspiracy theorists have been waiting for: interstellar comet 3I/ATLAS is as ...

The mystifying 3I/ATLAS interstellar comet is blazing toward Earth and will in a matter of days come as close to our planet ...

Comet 3I/ATLAS, the third interstellar object ever detected, reached its closest point to Earth overnight from Thursday to Friday (Dec. 18 to 19), and it remains in a good viewing position tonight.

On December 19, avid skywatchers can catch a glimpse of the mysterious visitor through powerful binoculars or a telescope when it’s around 170 million miles from our home planet ...

The mysterious interstellar comet 3I/ATLAS is making its closest approach to Earth on Friday, offering scientists a rare ...

I've taken incredible photos of this interstellar comet for more than a month using two tiny iPad-connected scopes in my ...

Does the universe notice that we're paying attention to a quantum experiment? The answer goes against everything we thought we knew.

How galaxies assemble their stars and grow over billions of years remains one of the central questions in astronomy. Recent ...

The Atacama Cosmology Telescope in Chile has released its final batch of data after 15 years — and it proves that the Hubble ...