Changes

== Pluto's Origin ==

== Pluto's Origin ==

Pluto was initially thought to have originally been a [[moon]] of [[Neptune]] that escaped into its own orbit around the [[Sun]]. But with the discovery of [[Charon]] in 1978, and the subsequent discoveries of its other moons [[Hydra (moon)|Hydra]] and [[Nix]], that theory became far less plausible.  The current theory is that Pluto and Charon both formed from the solar nebula as the other planets in the solar system did. <ref>http://www.britannica.com/eb/article-54312/Pluto</ref>

Pluto was initially thought to have originally been a [[moon]] of [[Neptune]] that escaped into its own orbit around the [[Sun]]. But with the discovery of [[Charon]] in 1978, and the subsequent discoveries of its other moons [[Hydra (moon)|Hydra]] and [[Nix]], that theory became far less plausible.  The current theory is that Pluto and Charon both formed from the [[nebula hypothesis|solar nebula]] as the other planets in the solar system did. <ref>http://www.britannica.com/eb/article-54312/Pluto</ref>

== In popular fiction ==

== In popular fiction ==