In the latest research, telescope observations of 3I/ATLAS examine its chemical structure and suggest that it took shape in a ...

I/ATLAS arrived fast, bright, and strange. When astronomers spotted it on July 1, 2025, they knew almost immediately this was no ordinary comet.

Our latest known interstellar visitor, comet 3I/ATLAS, is currently making its way out of the solar system, after passing by ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

Two massive planets may have once existed in early solar system before being ejected, leaving behind evidence in unusual ...

Add Yahoo as a preferred source to see more of our stories on Google. Artist's illustration of a pancake-shaped comet in deep space outgassing a whitish cloud of hydrogen. How do you tell the ...

Every June 30th, Asteroid Day marks the anniversary of the 1908 Tunguska impact and turns global attention to the science of ...

When 'Oumuamua traversed our solar system in 2017 it was the first confirmed Interstellar Object (ISO) to do so. Then in 2019, Comet 2l/Borisov did the same thing. These are the only two confirmed ...

Astronomers surveying the outer solar system have revealed that a rare object far beyond Neptune is moving in sync with the eighth planet in an unexpected way. Called 2020 VN40 and first discovered in ...

Carnegie’s Scott Sheppard and his colleagues — Northern Arizona University’s Chad Trujillo, and the University of Hawaii’s David Tholen — are once again redefining our solar system’s edge. They ...

One year ago, on July 1 2025, astronomers discovered a fascinating new object moving through the Solar System. Detected by ...