How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

Pluto was long considered our ninth planet, but the International Astronomical Union reclassified Pluto as a dwarf planet in ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

The dwarf planet also has one provisional moon, which is nicknamed MK 2. Discovery: March 31, 2005. Size: 888 miles in diameter (1/9 the size of Earth) Distance from sun: 4.3 billion miles.

The dwarf planet is known for cryovolcanism, a phenomenon where subsurface liquids, mainly briny water, seep to the surface. If organic compounds had formed in an underground ocean, they could ...

This dwarf planet has a ring instead of a moon, and scientists don’t know why By Jackie Wattles, CNN 3 minute read Updated 3:07 AM EST, Thu February 9, 2023 ...

Though Pluto has formally been considered a dwarf planet for almost two decades, it still has many lessons left for planetary scientists — including hints about how the solar system formed.

Quaoar is part of a collection of about 3,000 dwarf planets known as trans-Neptunian objects, which are beyond the orbit of the planet Neptune. Latest U.S.