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 ...

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

The sun has produced stunning auroras on Earth in recent years as solar activity has peaked—but expect more in coming years ...

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

New data from the James Webb Space Telescope suggests a planet in a faraway solar system was consumed by a star by hurling ...

The hypothesized planet’s orbit around the sun would likely take around 10,000 ... “Planet X” existed in the far reaches of the solar system. “It’s kind of fun that a paper that purports ...

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

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 long-theorized Planet 9, which astronomers ... roughly 120 degrees from the plane of the solar system, meaning it would actually orbit the Sun in the opposite direction than the other eight ...

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

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 ...