The third confirmed visitor from outside our solar system, 3I/ATLAS, has emerged from behind the Sun with a light curve that ...

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 ...

I/ATLAS, the rare comet currently making headlines as it travels through our solar system, made its closest approach to Mars ...

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

A rare cosmic visitor, 3I/ATLAS, the third confirmed interstellar object, was discovered in July 2025. This object, on a ...

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

The interstellar object 3I/ATLAS has sparked renewed scientific debate after data from NASA's Jet Propulsion Laboratory ...

Comet 3I/ATLAS is the third interstellar object ever observed after 1I/‘Oumuamua and 2I/Borisov. In recent weeks, its ...

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.