U-M astronomers are helping study a fast-moving, ancient, and massive comet that formed beyond our galaxy. A group of ...

Discovered last month by a telescope in Chile, the comet known as 3I-Atlas is only the third known interstellar object to ...

NASA’s Hubble Space Telescope has snapped images of a recently discovered interstellar visitor hurtling through our solar ...

That strange interstellar object flying by us may, according to one outlandish astronomer, have been sent by aliens to see ...

Other visitors from beyond our solar system Scientists know of only two other interstellar objects that have ever been observed from Earth. The first, 1I/2017 U1 ‘Oumuamua, was discovered by the ...

With a diameter of 88,846 miles at its equator, Jupiter is the biggest planet in our solar system. It’s eleven times larger ...

Astronomers found hidden cosmic channels, like tunnels, connecting our solar system to distant stars, reshaping views of ...

Travel through time to witness some of the most remarkable episodes in our solar system's history, uncovering its ancient ...

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

There may be a habitable world at the Sun's closest solar twin. In the complex space inhabited by the Alpha Centauri triple ...

From the scorching surface of Mercury to the icy edges of Neptune, our planetary neighborhood is full of wonders. The order ...

Our solar system hosts one abode for life, Earth, but in decades to come we may learn of others — perhaps biological enclaves on Mars or Jupiter’s moon Europa.