High on a ridge 5,250 meters above sea level in southwest China’s Xizang Autonomous Region, a new eye onto the infant ...

Astronomers have uncovered a massive, hidden exoplanet nestled in the dusty disc of a young star—MP Mus—by combining ...

Astronomers have detected a giant exoplanet—between three and ten times the size of Jupiter—hiding in the swirling disk of ...

Interstellar Comet 3I/ATLAS was the third visitor from outside our system, and its origins were being studied using an interstellar visitor model.

A mysterious object, first observed hurtling across the solar system on July 1, has now been identified as "very likely to be the oldest comet ever." ...

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen – possibly predating our solar system by more than three billion years, researchers say. The "water ...

New research has revealed everything astronomers currently know about the mysterious interstellar object 3I/ATLAS.

Tony Tyson’s cameras revealed the universe’s dark contents. Now, with the Rubin Observatory’s 3.2-billion-pixel camera, he’s ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

The interstellar comet 3I/Atlas is the fastest and largest of its kind, giving astronomers a rare glimpse into extrasolar ...

Stars often die with a final burst of beauty. For the first time, astronomers have captured visual proof that a star can ...

The NASA-funded ATLAS (Asteroid Terrestrial-impact Last Alert System) survey telescope in Rio Hurtado, Chile, first reported observations to the Minor Planet Center of comet 3I/ATLAS on July 1, 2025.