Web Results

Pluto - Wikipedia

en.wikipedia.org/wiki/Pluto

Pluto (minor-planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of ... The IAU has not formalized a definition for binary dwarf planets, and Charon is officially classifi...

Why Is Pluto No Longer a Planet? | Wonderopolis

wonderopolis.org/wonder/why-is-pluto-no-longer-a-planet

The truth is, nothing about Pluto changed, but the definition of a planet did. Once these changes became official, Pluto no longer fit the definition of a planet.

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. Why was it removed from the planet club?

Why Pluto is No Longer a Planet - Universe Today

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

Nov 27, 2009 ... Let's find out why Pluto is no longer considered a planet. Pluto was first discovered in 1930 by Clyde W. Tombaugh at the Lowell Observatory in ...

What Is Pluto? | NASA

www.nasa.gov/audience/forstudents/k-4/stories/nasa-knows/what-is-pluto-k4.html

Pluto is a dwarf planet in our solar system. ... The planet Jupiter is not a solid like Earth is. Jupiter ..... Large debris could be satellites that are no longer working.

Why is Pluto no longer a planet? (Everyday Mysteries: Fun Science ...

www.loc.gov/rr/scitech/mysteries/pluto.html

The International Astronomical Union (IAU) downgraded the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to ...

Why Is Pluto No Longer A Planet - Planets For Kids

www.planetsforkids.org/why-is-pluto-no-longer-a-planet.html

Pluto used to be known as the smallest planet in our solar system, and the furthest planet from the sun. Pluto was discovered in 1930 by Clyde Tombaugh, ...

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

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

Apr 22, 2015 ... ... from planet to dwarf planet, scientists had their reasons for changing Pluto's classification. Here's why Pluto is no longer considered a planet.

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 ... Short answer: Pluto has only two of the three necessary characteristics to be called a planet. Pluto has not cleared its neighborhood, or orbit.

Why is Pluto no longer considered a planet? | HowStuffWorks

science.howstuffworks.com/pluto-planet.htm

Aug 24, 2006 ... Pluto, shown as the outermost ring in both illustrations, has the most irregular orbit of all of the objects previously considered planets.

Answers
Pluto does not meet all three criteria that now define a planet. A planet must orbit around the Sun, have sufficient mass to maintain a nearly round shape, and it must have cleared the neighborhood around its orbit.
Pluto has not cleared the neighboorhood around its orbit. It has been reclassified as a "dwarf planet". More >>
Is Pluto actually a planet?
MassLive · December 2 1:25 PM
Could there be life in Pluto's ocean?
PhysOrg.com · December 2 12:26 AM
Scientists Probe Mystery of Pluto’s Icy Heart
Wireless Design & Development · December 2 4:43 PM