Later in December, the 3I/ATLAS interstellar comet will get as close to Earth as it ever will. Here's what to know.

One of the most intriguing events of the month is the perihelion — or closest approach to Earth — of Comet 3I/ATLAS on ...

December is the month that fans of 3I/ATLAS have been waiting for as the interstellar comet makes its closest approach to ...

Track the interstellar Comet 3I/ATLAS, catch the peak of the spectacular 120-per-hour Geminid meteor shower (Dec 13/14), and ...

When astronomers search for planets that could host liquid water on their surface, they start by looking at a star's habitable zone. Water is a key ingredient for life, and on a planet too close to ...

Astronomers have confirmed the existence of Proxima b, an Earth like planet right in our cosmic backyard. Located just 4.2 ...

Interstellar comet 3I/ATLAS is making its closest-ever pass in December. Learn about this mysterious space outsider, its ...

A small, icy traveler from deep space has just threaded its way through the inner Solar System, offering a fleeting but ...

December is an exciting month for those who like to look up, with a comet, a meteor shower, and a conjunction between the ...

Skywatchers will have a lot to look at in the night skies over Alabama in December. A super moon, a meteor shower and a comet ...

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 ...

Observations with the instrument SPHERE at ESO's Very Large Telescope have produced an unprecedented gallery of "debris disks" in exoplanetary systems.