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

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

NASA will go live today to share long-awaited images of the mysterious interstellar object 3I/ATLAS. Is it nearing Earth? How ...

I/Atlas isn’t sending messages. We explain the viral clip, the real radio detection from water chemistry, scientist responses, and its safe 170 million mile pass.

Scientists say 3I/Atlas came closest to Mars in October. Its path this month put it in the path of the warm rays of our sun, where a tail became more visible. The 3.5-mile solar object is traveling at ...

Interstellar objects occasionally enter our Solar System, providing insight into the composition and dynamics of distant ...

NASA released brand-new images of comet 3I/ATLAS from its array of spacecraft. These are visuals that were previously kept ...

Scientists have long wondered why Earth's overall makeup doesn't fully match the mix of materials found in ancient meteorites. One hypothesis has been that our proto-Earth (what the earliest stages of ...

A visitor from deep space is racing through our solar system, and it is behaving so strangely that it's challenging everything we know about comets. This object, the third known interstellar visitor, ...

3I/Atlas has returned to our visibility. The third interstellar object, however, doesn't stop surprising the scientific community as it shows up with yet another hue — it appears to have developed a ...

The interstellar object racing through our solar system has been caught unexpectedly picking up speed as it moves away from the sun and closer toward Earth. NASA has confirmed a small extra 'kick' ...