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|maxtemp=55 K

|maxtemp=55 K

|moons=5 or more

|moons=5 or more

}}''' 134340 Pluto''' is a [[dwarf planet]] in the Kuiper belt. It was once classified as one of the nine major planets, but lost this status in 2006. It is smaller than the eight major planets, and also smaller than [[Eris]] a recently discovered dwarf planet.<ref>http://www.space.com/scienceastronomy/070614_eris_mass.html</ref> Its name literally means "god of wealth" and is one of the two names for one of the brothers of Zeus; the other is Hades, or "god of the underworld." (The Romans used only the name ''Pluto'' for this particular Greek god.)

}}''' 134340 Pluto''' is a [[dwarf planet]] in the Kuiper belt. It was once classified as one of the nine major planets, but lost this status in 2006. It is smaller than all eight major planets as well as [[Eris]], a recently discovered dwarf planet.<ref>http://www.space.com/scienceastronomy/070614_eris_mass.html</ref> Its name literally means "god of wealth" and is one of the two names for one of the brothers of Zeus; the other is Hades, or "god of the underworld." (The Romans used only the name ''Pluto'' for this particular Greek god.)

According to the [[International Astronomical Union]], it no longer qualifies as a [[planet]] because it has not cleared its orbit of other objects.

According to the [[International Astronomical Union]], it no longer qualifies as a [[planet]] because it has not cleared its orbit of other objects. A 2015 flyby by U.S. spacecraft ''New Horizons'' found that Pluto has mountains that were formed relatively recently, suggesting active plate tectonics.

== Discovery ==

== Discovery ==