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 ...

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.

JUICE might be bound to Jupiter, but it is fortuitously in place to peek at this object from beyond the stars.

An interstellar comet that originated outside our solar system has just made its closest pass to the sun, brightening ...

Astronomers say 3I/Atlas will be visible in parts of the US sky for a short time, giving viewers a unique look at a comet from beyond our solar system.