The path of comet 3I/ATLAS through the solar system has been predicted with an accuracy 10 times greater than previous ...

Because this comet is so rare, NASA is utilizing multiple spacecraft and telescopes to observe it. Since its discovery on ...

For the first time, a fleet of orbiters and a rover circling another world has captured detailed views of an interstellar visitor as it swept through the inner solar system. As comet 3I/ATLAS brushed ...

It's possibly as big as Manhattan, likely older than our own solar system, and it's traveling through space at speeds of up ...

Science writer David Baron explores the initial interest in whether there was life on Mars in his latest book, "The Martians: ...

The rare interstellar comet, also known as 3I/ATLAS, was first discovered in July and has been photographed several times.

An interstellar trespasser known as 3I/ATLAS is almost certainly a comet. So, why do so many people think it's ...

NASA released new images of 3I/ATLAS as it plunged towards the sun, captured by a host of the agency’s robots and probes.

While the feds idled, an interstellar object known as 3I/ATLAS was barnstorming the solar system, at a speed that reached 153 ...

A Brown University researcher helps to lead the science team for NASA’s HiRISE camera, which caught images of the comet as it streaked past Mars.

3I/ATLAS is only the third known interstellar visitor, hence the prefix “3I.” The second known interstellar body, Comet 2I/Borisov, was discovered by the Russian astronomer Gennady Borisov in August ...

SEATTLE — November's episode of Sky Above features Keith Krumm to discuss what’s happening in the sky this month, including another supermoon, a meteor show and interstellar visitors. A new guest, ...