For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the ...

NASA's infrared telescope SPHEREx captured stunning images of interstellar comet 3I/ATLAS as it exited the solar system.

The comet broke into pieces after making a close approach around the sun in October 2025.

NASA's Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx) was built for the ambitious purpose of performing an all-sky survey. The data it collects ...

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 ...

The interstellar visitor may still have a few things to tell us before it leaves our solar system. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works ...

The Asteroid Terrestrial-impact Last Alert System (ATLAS) survey telescope discovered the interstellar comet 3I⧸ATLAS - NASA explains. Credit: NASA/JPL-Caltech Trump makes rare adjustments in ...

Why then should a comet increase, since it was already past the Sun and began its long departure? A NASA space telescope ...

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Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

NASA’s SPHEREx telescope observed a dramatic outburst from interstellar comet 3I/ATLAS after its October 2025 solar flyby. Infrared data revealed water vapor, carbon dioxide, methanol, methane, and ...

Record-breaking total of 15,000+ citizen science observations from the SETI Institute & Unistellar Network — up substantially from ~10,000 in 2024. Observers are already tracking fading 3I/ATLAS, new ...