I/ATLAS interstellar comet, first photographed from Mars orbit in October 2025, carries water ice with deuterium levels more ...

Interstellar comet 3I/ATLAS contains exceptionally high levels of methanol, suggesting it formed under conditions very different from those that shaped most comets in our solar system. ALMA also ...

©2026 Fox News Network, LLC. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed. All market data delayed 20 minutes.

Fresh observations of interstellar object 3I/ATLAS are reshaping what scientists know about the rare visitor. Radio detections of hydroxyl strongly support the conclusion that it is a natural, ...

Cropped image of NASA’s James Webb Space Telescope observation of comet 3I/ATLAS with its Near-Infrared Spectrograph instrument. Credit: NASA/James Webb Space Telescope This result is especially ...

Add Popular Science (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results.

Astronomers have used the European Southern Observatory's Very Large Telescope (ESO's VLT) to study the composition of 3I/ATLAS, the brightest interstellar object ever seen, in detail. By measuring ...

A newly spotted interstellar visitor just got an unusually close listen from California scientists — in a search for signs of technology. The verdict was less science fiction than some might have ...

An image of interstellar comet 3I/ATLAS captured by a telescope in Hawaii International Gemini Observatory / NOIRLab / NSF / AURA / B. Bolin Image Processing: J. Miller & M. Rodriguez (International ...

Comet 3I/ATLAS, the 3rd identified interstellar comet in human history, has a surprising chemical makeup. The Webb space telescope captured these images, each highlighting the presence of different ...

Interstellar comet 3I/ATLAS, which passed through the solar system in 2025, seems to have come from a chemically primitive region of the early Milky Way, according to James Webb Space Telescope ...