The European Space Agency's X-ray space observatory XMM-Newton observed interstellar comet 3I/ATLAS on 3 December for around ...

A stray comet from another star is swinging past Earth. Discovered over the summer, the comet known as 3I/Atlas will pass ...

The interstellar comet will pass safely by Earth, giving astronomers their best chance to study it up close. Interstellar comet 3I/ATLAS will make its closest approach to Earth on Friday, Dec. 19, ...

In the spirit of the season, the interstellar comet 3I/ATLAS is changing color as it leaves the sun behind — shifting from a ...

Comet 3I/ATLAS, an interstellar visitor, reaches its closest approach to Earth on Dec 19 at about 167 million miles - visible ...

Scientists say the colour shift in interstellar comet 3I/ATLAS is due to gases in the comet's coma reacting to solar heat.

Tracking comets accurately is hard. A new effort with the U.N. and NASA aims to better chart these visitors using 3I/ATLAS.

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

Interstellar comet 3I/ATLAS makes its closest Earth approach on Dec. 19, offering astronomers a rare chance to study a visitor from beyond the solar system ...

New images taken by the Hubble Space Telescope and a Jupiter-bound mission showcase interstellar comet 3I/ATLAS ahead of its ...

Gemini North captured new images of Comet 3I/ATLAS after it reemerged from behind the sun on its path out of the solar system ...