Dwarf Planets Learn more about Pluto and other dwarf planets, which are defined as objects that orbit the Sun and are nearly round, but that have not been able to clear their orbit of debris. The ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

Our solar system is a pretty wild place, full of amazing stuff. From the giant Sun to the tiny rocks floating around, there’s ...

Astronomers confirm TOI-5573 b, a rare, miniature Saturn-like planet orbiting a small star, challenging theories of planetary ...

How many Earth-like exoplanets orbit M dwarf stars (Red dwarf stars), which are smaller and cooler than our Sun? This is what ...

Artist's impression of Planet Nine – a suspected “wide-orbit” planet – with the Sun in the distance; Neptune's orbit is shown ...

Unlike most planets and dwarf planets, 2017 OF201 follows a wildly stretched, elliptical orbit. At its closest approach (perihelion), it ventures 44.5 times Earth’s distance from the Sun similar ...

There are 891+ confirmed moons- 421 orbit planets, and over 470 orbit dwarf planets and asteroids. Photo Credit: NASA ...

The researchers found that the dwarf planet's "orbit would remain stable for the next billion years or so — if there ... Despite this, "people have considered a whole host of different orbits for ...

A potential interstellar interloper is currently zooming toward the Sun. Its strange approach angle suggests it may have come ...