The 3I/ATLASs object is unusual because it came to the Solar System from "interstellar space." 3I/ATLAS is an interstellar object, possibly experiencing cryovolcanism, resembling trans-Neptunian ...

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that finding—which won the scientists a portion of the 2019 Nobel Prize in ...

What does the U.S. government know about “unidentified aerial phenomena” (UAPs), aliens and an alleged global alien technology arms race? A brand-new documentary claims to have an answer: more than it ...

The documentary examines scientific research on meteorites, cosmic dust, and ancient planetary impacts that could have delivered life-bearing material to Earth. Trump admin reacts after James Comey, ...

A comet named 3I/ATLAS, originating from outside our solar system, is passing through Earth's cosmic neighborhood. NASA has released new images of the comet, which is only the third interstellar ...

A comet that is likely much, much older than our solar system has spent months traipsing through Earth's cosmic neighborhood. And at long last, NASA has unveiled an unprecedented look at the object, ...

This comet had its sunscreen on. Recent photos reveal that 3I/ATLAS did not disintegrate during its recent fly-by of the sun, leading Harvard scientist Loeb to double down on suggesting that it could ...

Science fiction has long speculated about the possibility of first contact with an alien species from a distant world and how we might be able to communicate with them. But what if we simply don’t ...

As a native of Roswell, N.M., Demi Moore has a lot of thoughts about extraterrestrials. All of which she was happy to share with Stephen Colbert, much to his — and our — amusement. During an ...

Ever since astronomers first detected interstellar comet 3I/ATLAS in July, speculation about its true nature has run wild. Some experts speculate it isn’t a comet at all but rather an extraterrestrial ...