Mysterious interstellar object 3I/ATLAS reached its perihelion, or its closest point to the Sun, earlier this year, shedding copious amounts of ice and dust in the process. “We were all surprised,” ...

NASA has doubled down on its conclusion that 3I/ATLAS is a comet, even as a growing group of scientists suggest the interstellar object may be far stranger than anything previously observed. First ...

"This is a snapshot of where we are very early in the scientific process." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Since the interstellar ...

Earlier this week, NASA officials released long-delayed images of interstellar visitor 3I/ATLAS. One of the shots, taken by the HiRISE camera attached to the agency’s Mars Reconnaissance Orbiter, ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. It’s understandable why every space agency and astronomy ...

Fears of extraterrestrial probes rise with 3I/ATLAS's sunward jet, but NASA debunks: routine comet activity ahead of 29 Oct 2025 perihelion. The deep cosmos is often viewed as a realm of chaotic ...

It’s nearly 7 p.m. on the second Tuesday of the month, and Catherine Chapey is sitting at home in Holtsville, Long Island, making preparations for a social highlight of her week — a virtual meeting ...

3I/ATLAS is traveling away from us into deeper space, last scramble for data raises question about the interstellar object. Interstellar object 3I/ATLAS is on its journey to travel into deeper space, ...

This might be more than a tail of fire and ice? Comet 3I/ATLAS has displayed a variety of atypical traits, from its bizarre trajectory through our solar system to a complex jet structure. Now, Harvard ...

For several months, an ancient voyager unlike any other before has been visiting our small patch of the universe. In calling our visitor ancient, we mischaracterize its age as that word implies ...

In early October, NASA’s HiRISE camera aboard the Mars Reconnaissance Orbiter captured a rare and puzzling sight: the interstellar object 3I/ATLAS passing above Mars. The raw frame shows a heavily ...