NASA released a trove of never-before-seen images of the interstellar comet 3I/ATLAS, unveiling new characteristics of the ...

3I/ATLAS interstellar comet, first photographed from Mars orbit in October 2025, carries water ice with deuterium levels more than ten times higher than any solar system comet. The James Webb Space ...

Add Yahoo as a preferred source to see more of our stories on Google. Those concerned that 3I/ATLAS' arrival to our solar system meant that some sort of alien invasion was imminent can breathe a sigh ...

The NASA/ESA Hubble Space Telescope reobserved interstellar comet 3I/ATLAS on 30 November with its Wide Field Camera 3 instrument. At the time, the comet was about 286 million kilometers from Earth.

The mysterious interstellar object known as 3I/ATLAS may not be an alien, or even an alien artifact, as was once popularly theorized. That doesn’t mean we shouldn’t double and triple-check just to be ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A deep image of interstellar Comet 3I/ATLAS captured by the ...

Comet, or rather interstellar object 3I/ATLAS, has become one of the most talked about celestial objects of 2025 as it makes its closest approach to Earth this week. It is maybe the most interesting ...

Add Yahoo as a preferred source to see more of our stories on Google. SETI scientists scanned interstellar object 3I/ATLAS for radio technosignatures and found no evidence of artificial signals.

Is 3I/ATLAS an alien craft or just an extraordinary cosmic visitor? That question has resurfaced after the Central Intelligence Agency (CIA) refused to confirm or deny whether it holds classified ...

They’ve got their 3Is on the prize. The highly anticipated data 3I/ATLAS’ Earth tour last month is in. A targeted scan of 3I/ATLAS for signs of radio transmitting tech has come up empty — but Harvard ...

Astronomers found no radio signals from the comet that would suggest it is an extraterrestrial spacecraft. 3I/ATLAS was confirmed as the third known object to enter our solar system from interstellar ...

A comet from another star system does not arrive every year. That is part of what made 3I/ATLAS so compelling when it appeared in July 2025. It streaked into the Solar System on a path so extreme that ...