More Pondering of Pluto
Percival Lowell was certain that our solar system had a ninth planet, and began searching for it in 1905. After he died in 1916, nobody continued the search for several years. Clyde Tombaugh was able to resume the search later on, and announced the discovery in 1930 . It was named Pluto by 11-year-old Venetia Burney . However, even with the best available telescopes, Pluto was only seen as a dot. It took NASA's New Horizons probe to give us a good look at it. This gave the world a passel of surprises. Pluto and moon Charon image credit: NASA (Usage does not imply endorsement of site contents) Although Pluto was downgraded to dwarf planet status in 2006 by the International Astronomical Union, it has five known moons. The largest is Charon. These objects have thwarted cosmic evolution stories in several ways, including how the solar system is arranged with the four more solid bodies nearest the sun, then the gas giants, and you eventually get to the trans-Neptunian objects