But then scientists at the International Astronomical Union decided Pluto didn’t quite make the cut, it lacked the ...

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 ...

Pluto was discovered at Lowell Observatory in Flagstaff in 1930. Planet X, as it was called, was quickly renamed Pluto, the ...

In this region, objects in space could cross any dwarf planet — and Pluto’s — orbit. Pluto also sits within a larger field of objects surrounding the solar system called the Kuiper Belt.