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Once Pluto was found, its faintness and lack of a resolvable disc cast doubt on the idea that it was Lowell's Planet X.

Why Pluto is No Longer a Planet - Universe Today


Dec 24, 2015 ... 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".

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 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 ...

Why Is Pluto No Longer A Planet? We Explain : CULTURE : Tech ...


Apr 22, 2015 ... Here's why Pluto is no longer considered a planet. ... Of course, that doesn't mean that Pluto isn't any less important in our solar system. NASA's ...

Why isn't Pluto a planet any more? | Reference.com


As of 2014, Pluto isn't considered a planet because of its size and location in space. In 2003, when an astronomer found an object in space that was beyond ...

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."

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 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 ...

Pluto, though originally classified as a planet, was reclassified in 2006 as a "dwarf planet".
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What Is Pluto? | NASA


Most inner moons in the solar system keep one face pointed toward their central planet; this animation shows that certainly isn't the case with the small moons of ...

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


Jul 13, 2015 ... Pluto has not cleared its neighborhood, or orbit. ..... the IAU doesn't recognize the category anymore — even Pluto was belatedly issued one). ... Really how can we say it isn't a planet when it has all this and yet currently ...