New telescope images show that the interstellar comet 3I/ATLAS is shooting a giant jet of gas and dust toward the sun. This ...

A cosmic coincidence could give us an unprecedented look at a visitor from another solar system. If all goes well.

An interstellar object called 3I/ATLAS has captured tremendous attention in the planetary science sphere, and soon it will ...

Fans, skeptics, and amateur astronomers alike are weighing in, creating a digital echo chamber of fascination and frenzy.

The interstellar object 3I/ATLAS has gathered significant scientific attention, and soon it will reach its closest point to ...

Telescopes around the world recorded new evidence about what the 3I/Atlas is and what scientists observed about it.

A NASA-backed planetary defense group has reportedly begun efforts to pinpoint comet 3I/ATLAS after it was observed emitting ...

Astronomers may be just weeks away from an unprecedented opportunity to learn more about our solar system’s interstellar ...

"If the object is an alien spacecraft slowing down, and the anti-tail is braking thrust, then this change from anti-tail to ...

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

At the end of October Europa Clipper will fly in line with 3I/ATLAS’ ion tail — but will any of the charged particles reach ...

Astronomers around the world are closely watching an interstellar visitor unlike anything formed in our solar system.