What makes 3I/ATLAS especially intriguing is that the comet might be three billion years older than our entire Solar System.

A new analysis of our solar system’s interstellar interloper, 3I/ATLAS, reveals that it’s spewing huge amounts of water — and ...

The interstellar comet 3I/ATLAS may be out of view of Earth, but orbiters on Mars were able to recently get a look at it.

The images offer the closest view yet of comet 3I/ATLAS, famous for being only the third known interstellar object to pass ...

ESA’s Mars orbiters have observed comet 3I/ATLAS, only the third interstellar comet ever discovered. The faint, distant ...

The European Space Agency's two Mars orbiters take their shot at getting pictures of the exotic interstellar comet 3I/ATLAS.

Water is the universal yardstick of comet science, the baseline for measuring how sunlight drives a comet's activity and ...

NASA’s Swift telescope spotted signs of water on interstellar comet 3I/ATLAS - proof that water flows far beyond our solar ...

Astronomers just caught a rare glimpse of an interstellar comet as it zoomed past Mars. Images of the object, dubbed 3I/ATLAS ...

"As far as I know, there are no protocols for responding to the discovery of functioning alien devices near Earth." ...

An interstellar visitor is zipping through the Milky Way, and a team of Michigan State University researchers is keeping ...

A comet from another star system is swinging by Mars as a fleet of spacecraft trains its sights on the interstellar visitor.