The comet could be older than our solar system. The comet is also distinct because nickel vapor was detected in the gas ...

Halloween is upon us and the 2025 spooky season is abuzz with talk of three cosmic visitors — Comet Lemmon, Comet SWAN and the interstellar traveler 3I ATLAS — said to be haunting the night sky. But ...

Harvard professor Avi Loeb has suggested that interstellar comet 3I/ATLAS may not be entirely natural after it showed non-gravitational acceleration while nearing the Sun. NASA’s data revealed the ...

Comet 12P/Pons-Brooks and Jupiter were seen by NASA's Solar TErrestrial Relations Observatory-A (STEREO-A). Credit: Space.com ...

The ESA/NASA Solar and Heliospheric Observatory (SOHO) captured comet Comet 96P/Machholz latest flyby of the Sun. See a time-lapse of the footage here. Credit: ESA/NASA/SOHO | edited by Space.com's St ...

Interstellar invader Comet 3I/ATLAS is still full of surprises — an unexpected brightening has scientists baffled ...

While experts like Avi Loeb have raised intriguing possibilities, NASA confirms the definitive news: 3I/ATLAS poses 'no ...

I/ATLAS is the third interstellar object ever discovered in our solar system. Telescope observations suggest it is a roughly 7-mile-wide (11 kilometers) comet zooming at more than 130,000 mph (210,000 ...

When Comet 3I/ATLAS roared into the solar system this summer, it launched a scientific scramble to study what astronomers ...

A Harvard University professor has said that 3I/ATLAS experienced a sudden "nongravitational" acceleration while passing ...

The European Space Agency's ExoMars Trace Gas Orbiter has captured unprecedented close-range data on the interstellar object ...

Here's where Comet 3I/ATLAS, Lemmon and SWAN are in the Halloween sky.