4 days ago · The infrared space telescope also detected water vapor, carbon dioxide and organic compounds streaming from the departing comet two months after it made its closest approach to the …

What NASA and ESA say about 3I/ATLAS right now Officially, space agencies are treating 3I/ATLAS as a comet whose oddities are opportunities rather than signs of alien engineering.

Sep 8, 2025 · Despite some suggestions that it could be an alien spacecraft, observations from some of the most powerful telescopes quickly revealed it to be a comet rocketing our way.

Jul 24, 2025 · The alien comet 3I/ATLAS is roughly 7 miles (11.2 kilometers) wide, making it the largest interstellar object ever spotted, according to newly revealed photos from the Vera C. Rubin …

Dec 4, 2025 · Hubble captured this image of the interstellar comet 3I/ATLAS on July 21, 2025, when the comet was 277 million miles from Earth. Hubble shows that the comet has a teardrop-shaped cocoon …

3I/ATLAS, also known as C/2025 N1 (ATLAS) and previously as A11pl3Z, is an interstellar comet [18][19] discovered on 1 July 2025 by the Asteroid Terrestrial-impact Last Alert System (ATLAS) …

Dec 17, 2025 · The deep-space comet 3I/ATLAS that’s currently barreling through the solar system — which some have speculated may be an alien spacecraft — will make its closest approach to Earth …

See the live position and real-time trajectory of interstellar comet 3I/ATLAS (C/2025 N1). Our interactive tracker uses the latest NASA/JPL ephemeris data for the most accurate simulation.

3 days ago · NASA’s SPHEREx telescope observed an unexpected surge in activity from interstellar comet 3I/ATLAS during December 2025., This provided the clearest chemical analysis yet of material …

Oct 7, 2025 · Since its discovery, this interstellar comet has been changing dramatically as it journeys through our solar system. For the first time in what may be billions of years, it is feeling the warmth of …