It must have cleared all other celestial bodies, except its own moons, from its orbit.

Astronomers have been curious about the makeup of Ceres, the largest object in the asteroid belt, ever since its discovery by ...

Astronomers think that a dwarf planet hiding in the middle of our solar system could be a source of frozen water. The dwarf ...

The Sun makes up 99% of all the mass in the Solar System ... The largest object is the asteroid belt is the dwarf planet Ceres, which is 950km in diameter (that's about the same the length ...

A blue atmosphere, smooth areas, and youthful mountain ranges - this dwarf planet is full of surprises. When NASA's New Horizons probe flew past Pluto in July 2015, the images it returned astonished ...

From afar, Pluto once seemed boring and dead. After all, the dwarf planet is only two-thirds the size of our moon and resides more than 30 times farther out from the sun than does Earth.

A screenshot of James’s animation “Planets and dwarf planets to scale in size, rotation speed & axial tilt in distance order from Sun”. Credit must be given to the creator. Only ...

Famously, Pluto no longer met the criteria and was demoted to a dwarf planet ... had to rethink things — surely, planets lived alone, after all. Herschel proposed the term "asteroids" for ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. A dwarf planet called Ceres could offer some amazing insights into our quest to ...

"This information will help us fill in the gaps in our knowledge of how brown dwarfs form and their relationship to stars and planets." ...

As the name suggests, a dwarf planet is smaller than a planet. Its force of gravity is not strong enough to pull in all the many other objects in its orbit around the Sun. Pluto is not very big.

Enceladus, a moon of Saturn, and Europa and Ganymede, moons of Jupiter, are all thought to have saltwater oceans buried under icy shells. Dwarf planets Pluto and Ceres are also suspected of having ...