SOLAR SYSTEM

Detailed explanation-1: -Pluto is a dwarf planet in the Kuiper Belt, a donut-shaped region of icy bodies beyond the orbit of Neptune. There may be millions of these icy objects, collectively referred to as Kuiper Belt objects (KBOs) or trans-Neptunian objects (TNOs), in this distant region of our solar system.

Detailed explanation-2: -Pluto is the largest of the Kuiper Belt objects (KBOs)-a collection of ice-rock bodies found beyond the reaches of Neptune’s orbit. We don’t know exactly what created the Kuiper Belt, but the objects within it are thought to be leftovers from the formation of the solar system.

Detailed explanation-3: -Dwarf planet Haumea is a member of a group of objects that orbit in a disc-like zone beyond the orbit of Neptune called the Kuiper Belt.

Detailed explanation-4: -Answer. The International Astronomical Union (IAU) downgraded the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet. Essentially Pluto meets all the criteria except one-it “has not cleared its neighboring region of other objects.”

Detailed explanation-5: -Pluto is a complex and mysterious world with mountains, valleys, plains, craters, and maybe glaciers. Discovered in 1930, Pluto was long considered our solar system’s ninth planet. But after the discovery of similar intriguing worlds deeper in the distant Kuiper Belt, icy Pluto was reclassified as a dwarf planet.