As a joke, she labeled it LGM 1 for "Little Green Men," but the astronomers working on it did not really believe they had ...

The interstellar comet 3I/ATLAS is not just a visual spectacle but also a scientific treasure. As the third such interstellar ...

I/ATLAS is the third interstellar object ever discovered in our solar system. Telescope observations suggest it is a roughly ...

A new photo of interstellar comet 3I/ATLAS allegedly leaked from NASA has led to intense online debate. Users claim it shows ...

During that close approach, scientists were surprised to note that 3I/ATLAS brightened much faster than they anticipated.

Behind the Sun, the comet appears to show signs of acceleration beyond what is expected by gravity. And for reasons not yet ...

An interstellar object roughly the size of Manhattan has captured scientists’ attention — and one prominent Harvard ...

An astronomer has snapped comet 3I/ATLAS using the Lowell Observatory's powerful Discovery Telescope, as well as his own small telescope. The new photos are believed to be the first optical ...

Loeb, though, has another explanation. In his latest blog on the interstellar object, Loeb posits that the anti-tail could ...

The unusual trajectory of interstellar comet 3I/ATLAS has sparked speculation that it could be an alien spacecraft.

U.S. officials continue monitoring interstellar comet 3I/ATLAS despite the government shutdown, with NASA coordinating updates and congressional discussions on new data and upcoming observations.

Interstellar object 3I/ATLAS is on the opposite side of the sun from Earth - but several spacecraft are in the perfect ...