The interstellar comet will pass safely by Earth, giving astronomers their best chance to study it up close. Interstellar ...

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

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

The interstellar comet known as 3I/Atlas will pass within 167 million miles of our planet Friday – the closest it gets on its ...

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

Discovered over the summer, the comet known as 3I/Atlas will pass within 167 million miles of our planet on Friday. That's as ...

On July 1st, 2025, the third interstellar object (ISO) ever detected was seen making its way through our solar system.

Interstellar object 3I/ATLAS will fly by Earth on December 19, 2025, and a few key details can help amateur observers spot the visitor in the sky ...

Interstellar object 3I/ATLAS continues to display a Sun-facing anti-tail, confirmed by Hubble, Gemini and XMM-Newton ...

Discovered on July 1 by the NASA-funded ATLAS telescope in Chile, 3I/ATLAS is only the third confirmed visitor from another ...

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

In a Sunday afternoon email announcing the one-day Amazon Leo 4 mission postponement, ULA officials said "teams are actively ...