Astronomers have discovered that Saturn has thrown a newly found comet on its way out of the solar system. Comet A117uUD is expected to go interstellar at 6,700 mph.

Related Story. Our Solar System Is Shaped Like a Croissant; If there really was such an intruder, what exactly the object was and where it went are questions still hanging in space.

Almost 20 years after Pluto was infamously downgraded from its status as a planet, scientists now believe they have discovered a new planet in our solar system.

For only the third time, astronomers have found something passing through our solar system that came from outside the solar system. This interstellar object, known as 3I/ATLAS, is still pretty far ...

Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show opening to the public on Monday. At the American Museum of Natural History last fall ...

Related: 10 out-of-this-world solar system discoveries made in 2023. Planet Nine. Some astronomers believe a ninth planet is lurking in the outer reaches of the solar system.

The solar system could be packed with 1 million alien visitors, space rocks shaken away from our cosmic neighbor Alpha Centauri, new research has revealed. Skip to main content Open menu Close menu ...

The solar system consists of eight planets, several dwarf planets, hundreds of moons, and billions of asteroids, comets and ...

The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it looks like. Now, new simulations may have given them a first glimpse.

Related: 1 million 'interstellar objects' — each larger than the Statue of Liberty — may lurk in the outer solar system A11pl3Z is currently around 3.8 times as far from the sun as Earth is.