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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 ...

What Is Pluto? | NASA


Pluto is a dwarf planet in our solar system. ... pointed toward their central planet; this animation shows that certainly isn't the case with the small moons of Pluto, ...

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, ...

Why Is Pluto No Longer a Planet? | Wonderopolis


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 ...


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 ...

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


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


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


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


Feb 21, 2013 ... Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune are considered planets. Pluto isn't in the same category anymore. Why not?

Sorry Pluto, You Still Aren't a Planet | Science | Smithsonian


Nov 11, 2015 ... When Pluto was voted out of the planetary family in 2006, textbooks were .... So why does everyone keep saying "Pluto isn't a planet anymore!

Pluto, though originally classified as a planet, was reclassified in 2006 as a "dwarf planet".
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Why Pluto is No Longer a Planet - Universe Today


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.

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


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 ...


Apr 22, 2015 ... Of course, that doesn't mean that Pluto isn't any less important in our solar system . NASA's New Horizon mission began before scientists voted ...