Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

The solar system is our cosmic neighborhood, made up of the sun and everything that orbits it — planets, moons, asteroids, comets, and even dust and gas. The order of the planets in the solar ...

Earth has four seasons, but do other planets in our solar system also have hot summer days and cold winter nights?

The exoplanet 2M1510 (AB) b makes an unusual orbit around a pair of brown dwarfs, objects bigger than gas-giant planets but ...

Discovered in 1930, Pluto was long considered our Solar System's ninth planet, but was unseated in 2006 after the discovery ...

For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...

Thanks to JWST, we've learned key details about methanol — a key building block for organic compounds necessary for life — on ...

Astronomers may have found a candidate for Planet Nine. This planet is beyond Neptune. The finding could be the first ...

To put that in perspective, this new planet at the outer rim of the solar system would be almost 20 times farther away from the sun than Pluto is. Pluto, which infamously lost its status as the ...

The Solar System consists of our star, the Sun, and everything bound to it by gravity; the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, along with dwarf planets like ...