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Pluto

en.wikipedia.org/wiki/Pluto

Once found, Pluto's faintness and lack of a resolvable disc cast ... idea that it was Lowell's Planet X. Estimates of Pluto's mass ...

Why Pluto is No Longer a Planet - Universe TodayUniverse Today

www.universetoday.com/13573/why-pluto-is-no-longer-a-planet/

Jan 5, 2012 ... Let's find out why Pluto is no longer considered a planet. Pluto was first ..... In my opinion, any definition of planet that isn't… Read more ». 0.

www.ask.com/youtube?q=Why Isn't Pluto a Planet Anymore?&v=APPGb-4bp4Q
Jul 13, 2012 ... NASA scientist explains why Pluto got... well... plutoed. Pluto (minor-planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, ...

Remind Me Again, Why Isn't Pluto a Planet? : Discovery News

news.discovery.com/space/history-of-space/pluto-planet-new-moon-status-110726.htm

Jul 26, 2011 ... Understand the reason Pluto isn't considered a planet anymore and ... Artist impression of Pluto and largest moon Charon from the surface of ...

Why is Pluto no longer a planet? - BBC News - BBC.com

www.bbc.com/news/science-environment-33462184

Jul 13, 2015 ... In 2006, Pluto was demoted from planet status. ... But it will bring into clear focus once more what is, and what isn't, meant by the term "planet".

Why Is Pluto No Longer A Planet? We Explain : Culture : Tech Times

www.techtimes.com/articles/48007/20150422/this-is-why-is-pluto-no-longer-a-planet.htm

Apr 22, 2015 ... ... classification. Here's why Pluto is no longer considered a planet. ... This means that Pluto isn't like a planet at all, but more like these objects.

Pluto a Planet Again? It May Happen This Year - The Crux

blogs.discovermagazine.com/crux/2015/02/25/pluto-ceres-planet-again/

Feb 25, 2015 ... To be fair, the people on the “Pluto isn't a planet” side are just as passionate and intense as those on the “Pluto is a planet” side. Using terms ...

Why is Pluto not a planet? – Greg Laden's Blog - ScienceBlogs

scienceblogs.com/gregladen/2015/07/13/why-is-pluto-not-a-planet/

Jul 13, 2015 ... The simplest reason that Pluto is not a planet is that planet experts say so, .... Nor would it in being the first discovered, which it also isn't. ..... doesn't recognize the category anymore — even Pluto was belatedly issued one).

Pluto Not a Planet, Astronomers Rule - National Geographic News

news.nationalgeographic.com/news/2006/08/060824-pluto-planet.html

Aug 24, 2006 ... Pluto is no longer a planet, according to a new official definition. Instead the icy sphere will be considered one of more than 40 "dwarf planets."

Video: Why isn't Pluto a planet anymore? | Space | EarthSky

earthsky.org/space/video-why-isnt-pluto-a-planet-anymore

Feb 21, 2013 ... Video by C.G.P. Grey does a good job explaining why, in 2006, the International Astronomical Union demoted Pluto to dwarf planet status.

Answer
Pluto, though originally classified as a planet, was reclassified in 2006 as a "dwarf planet".
More Info

What Is Pluto? | NASA

www.nasa.gov

Why Is Pluto Not Called a Planet Anymore? In 2003, an astronomer saw a new object beyond Pluto. The astronomer thought he had found a new planet.

Why Is Pluto No Longer a Planet? | Wonderopolis

wonderopolis.org

American astronomer Clyde Tombaugh discovered Pluto in 1930. From 1930 until 2006, Pluto sat comfortably beyond Neptune as the ninth planet in our solar  ...

Why isn't Pluto a planet anymore? - UCSB Science Line - University ...

scienceline.ucsb.edu

The reason why there was debate over whether Pluto constitutes a planet or not is due to ... Pluto is not considered a planet anymore because The International ...