Pluto why it is no longer a planet

Pluto is considered a dwarf plant, though!! We hope this helps! Unique Martineaz Dec 4, I look forward on learning new information if not I look forward on sharing some information. That's a very kind thought, Unique! Jun 17, It's cool to be passionate about a topic, Quang! Bart Tucker Nov 26, Nov 26, Hi, Bart! We hope that this Wonder helps you find out why Pluto is no longer a planet!!

We're sorry to hear that, pearl! I think that ring worlds would be classified as: what the heck planets instead of dwarf planets.

Nov 19, Cora Nov 2, Nov 5, Oct 5, Hi, valerie! Let us know what you discover from this Wonder!! Amy rudidick Sep 12, Oh hi Emm..

Well Pluto was no longer a planet because Sep 15, Chrissy R. Sep 5, Sep 12, Hi, Chrissy R.! We're glad to have you as a Wonder Friend! Sep 11, Bug 18 Aug 29, I was really curious about this topic!!!! Thank you so much!! This was a big help for my science assignment Aug 31, BB Jul 17, So because somebody change the rules Pluto is no longer a planet! Maybe I should make a rule too. Like a sun must not shine on Tuesday.

Most likely it's common core. Let's not overload the kiddie's brains or teach them any common sense. Jul 18, We hear your frustration, BB. We miss Pluto, too. Carla Queen Aug 23, Aug 25, Great insight, Carla! Kemo Meme Jun 17, Jun 20, Well, more years to make it around the sun.

Pretty crazy, huh? Gameboy Jun 1, Dwarf basically means small and due to that Pluto is a small Planet and it even has planet in the name. Jun 5, Thanks for sharing your thoughts, Gameboy!

May 22, Malaika May 18, That's great! We are so glad to hear that. May 17, What I learned is that Pluto does not follow the third rule to Pluto to be a real planet.

The third rule is that the planets need to clean it's neighborhood. Also, Pluto is not the only the planet called "dwarf" there is five plantes. May 8, That's great, Shary! SO glad you learned so many new things with us! I learned that Pluto was no longer a planet. In however, changes were made.

Once these changes became official , Pluto no longer fit the definition of a planet. Sarah C May 5, This is cool i never knew Pluto was not a planet. Pluto deserves more love. I did not know that there where more planets like pluto.

Neat, huh? Thanks for sharing what you learned with us, Ali! Victor E. May 5, This is interesting. And to my Expereince that the IAU even made planet rules. Awesome, Victor! So glad you checked this one out!

Hassan May 5, We LOVE learning new things! So glad you learned something new with us, too, Hassan! Thanks for sharing your thoughts, Emahnee! Mack May 5, I learned that it takes earth years for Pluto to take one trip around the sun. That's a long time! Thanks for sharing what you learned! Shikhar Khare Apr 24, Apr 25, So glad you liked this on, Shikhar!

Bob Apr 20, Apr 22, Natalie PopGem Mar 27, Mar 28, Kyleigh Mar 23, What I found was most interesting in this article was that Pluto was considered a Dwarf Planet because it only met 2 out of three rules to be a planet. I always thought it wasn't a planet because it was so small. Katlyn hotz Jun 4, Lory Mar 23, Thank you sooo much that helped me out a lot and because of that I was able to finish my homework that I had to publish the next day.

Mar 23, So glad we could help you out! Come Wonder with us again soon! Laniyah Mar 2, Mar 2, Timur Feb 18, Well done. And I'd want especially to appreciate the ability to listen the text in this site, for those who also trying learn english. Thanks from Crimea. Feb 20, Thank you for the feedback, Timur! Price's Class Feb 6, We loved learning about Pluto, but have some further questions: Does Pluto rotate on an axis like the other 8 planets? When were the other dwarf planets discovered?

Feb 7, Jayda Jan 31, Feb 1, Sad to see it go, though, Jayda. Thanks for sharing your thoughts with us! Tabeer Dec 16, I am very glad that this is a great site and the latest comment was done by me not javeria. The latest comment was done by me not Tabeer Sorry!

I wrote Tabeer's name by mistake. Dec 16, Thanks for letting us know, javeria. We're glad you are exploring Wonderopolis! Hey there, Tabeer! We hope you'll visit again soon! Welcome back, javeria! Javeria Nov 19, I was wondering why is Pluto not considered as a planet and this site really cleared my confusion. Nov 20, We're glad to have helped you learn the answer, Javeria! I never knew they had to clear the stuff to be a planet.

I always wondered why Pluto wasn't a planet. Nov 17, Trinity Watkins Oct 26, Pluto should be a planet, no matter how small it is it should!!!!!!!!!!!!!!!! Oct 26, Trinity Watkins Oct 27, Oct 27, It's great to hear from you again, Trinity!

Oct 25, I have to make an assignment on this topic so can I follow this article?? Now i understand ''Pluto is not considered a planet anymore because of the new criteria that NASA accepted as basis to qiualify it as a planet :- it needs to pass the 3rd qualification, perhaps in the future it will be considered as a plenet, it just needs time for the 3rd qualifier. We're glad you learned some new things with us, iftezam! Thank you for commenting! Sep 16, It's nice to meet you, hi!

Sofia Sep 2, Isn't Pluto called a dwarph planet because me when you say "dwarph" it's like your the planet is small. Sep 2, How did Pluto get booted from the Solar System. Aug 17, Jul 21, Thanks for the KIND words, althaf! Matthew Jul 14, Aug 11, Jul 14, Sara May 30, I think Pluto should be a planet but unfortunately Pluto is not a planet D:.

May 31, Sadie May 3, May 6, May 18, Apr 28, Jackson Apr 22, Doron Mar 31, Its interesting that there is five dwarf planets in our solar system. Apr 2, Thanks for sharing what you learned, Doron! Learning about space is always interesting!

Cerys Mar 29, I like how you told me what makes a real planet. Step 1. A planet must be round. Step 2. Step 3. A planet must have 'cleared the neighbour hood' of its orbit. Thank You. Apr 1, Thanks for sharing what you learned, Cerys! Mar 17, Uy Feb 22, Mar 3, Feb 23, BOB Feb 19, Feb 21, Leah : Mar 10, Mar 14, Nerdygurl Feb 16, This just helped me with schoolwork. Feb 18, Morgan Jan 6, I think Pluto was classified a dwarf planet because it was inside the Kuiper belt, or its just that its way to small to be called a planet.

I wrote an article about this in 5th grade ;. Jan 7, Haylee Jan 6, Poor Pluto. And membership is growing fast. Currently, what are the five dwarf planets and where are they located in the Solar System? Dec 17, Pete Dec 6, This is an amazing website! I learned a lot! Hopefully i will get a good mark for school!

Thank ya Wonderopolis! Dec 6, DragonQueen Nov 21, Nov 15, Have fun exploring this Wonder and learning more about this! My friends and I feel that everyone has forgotten the most important fact. The Pluto may have not been discovered until but as the story goes the suns, plants, and havens were created first.

We were just late joining the party. Oct 30, Shayak Aug 17, Aug 18, Jun 4, I learned a lot about why Pluto is no longer a planet. Jun 8, Wonderopolis Apr 24, Hi, your mom!

Enjoy the rest of your day! Anonymous Mar 15, Wonderopolis Mar 19, Rebecca S. Mar 15, I did some research, and Pluto's orbit intersects with Neptune's. Does anyone in this discussion know why? M Jan 24, Is there anyway of choosing the right definition for Pluto in this article. It says it is a dog from Disney, but if students are reading this it would be nice for them to know the definition that relates to the article. Wonderopolis Jan 26, I did some research, and Pluto was almost named George!

Chelsea Jan 22, I dont understand how planets make the neighborhood clean!! And why does it have to be those 3 rules in order to become a planet? Because here surely has to be some other rules that the other planets don't have in common!! Because, think about pluo. He's with all the other dwarf planets when instead he could be with our planets!! So why does it have to be those 3 rules in order to become a planet and how long do you guys think it'll take for Pluto to become planet??

Wonderopolis Jan 23, Samantha Dec 3, Why isn't Ceres an asteroid if it's in the asteroid belt? Wonderopolis Dec 4, Evan Jun 19, Wonderopolis Jun 20, Sydney Jun 19, This is really cool! It must take a really long time for Pluto to go around the sun but I'm sure it'll get there eventually! Wonderopolis Jun 19, Bria Thomas Jun 19, I really like this wonder and it's facts and video. Khyreese Jun 23, Wonderopolis Jun 23, This object sits in the asteroid belt between Mars and Jupiter.

Like Pluto, Ceres was considered a planet after its discovery. By the end of the s, scientists knew Ceres had hundreds of neighbors. Since Ceres no longer appeared special, the story goes, it lost its planetary title.

The largest asteroids still looked like planets. Most small ones, however, turned out to be weird, lumps. This provided evidence that they were fundamentally different than the bigger, rounder planets. And what about moons? The change was driven by nonscientific publications, such as astrological almanacs. These books use the positions of celestial bodies for horoscopes.

Astrologers insisted on the simplicity of a limited number of planets in the sky. But new data from space travel later brought moons back into the planetary fold. The word has changed meanings many times, for many different reasons. All these places have extra complexity that arises when rocky worlds get big enough to become spherical. Examples of that complexity span from mountains and atmospheres to oceans and rivers. Nor does Metzger think everyone need adopt his.

Emphasizing eight major planets suggests they dominate the solar system. In fact, the smaller stuff greatly outnumbers those worlds.

Gas giants , for instance, have shuffled around in the past. Viewing the solar system as just eight unchanging bodies may not do that complexity justice. Brown plutokiller disagrees. Having the gravitational oomph to nudge other bodies around is an important feature of a planet, he argues. Plus, the eight planets clearly dominate our solar system. One common argument for the IAU definition is that it keeps the number of planets manageable. Can you imagine if there were hundreds or thousands of planets?

How would the average person keep track of them all? What would we print on lunch boxes? But Metzger thinks counting just eight planets risks turning people off to the rest of space.

Yet many of those smaller objects are still interesting. Already, there are at least known dwarf planets. Most people, however, are unaware, Metzger says. Indeed, why do we need to limit the number of planets? Why not planets? Why not inspire people to rediscover and explore the space objects that most appeal to them? Pluto met the first two of the these criteria, but the last one proved pivotal. In other words, it has achieved gravitational dominance.

Because Pluto shares its orbital neighbourhood with other icy Kuiper Belt Objects, the resolution effectively stripped the distant world of a planetary designation it had held for some 76 years. It was immediately relegated it to the distinct category of "dwarf planet", alongside the biggest body in the asteroid belt, Ceres, and other large Kuiper Belt Objects such as Eris, Quaoar and Sedna. Commenting at the time, the IAU's president of planetary systems science Prof Iwan Williams said: "By the end of the decade, we would have had planets, and I think people would have said 'my goodness, what a mess they made back in '.

In a word, no. Some experts immediately questioned the part of the definition about a planet clearing its orbital neighbourhood. This is because Earth shares its cosmic turf with more than 12, near-Earth asteroids. Thus, some have argued that Earth, Jupiter and other planets also fail to meet the IAU's definition.

Speaking just after the vote, Prof Alan Stern, chief scientist for the New Horizons mission, called the outcome "an awful decision" and described the new definition as "internally inconsistent". The low turn-out has been blamed on timing; the vote was held on the last day of the General Assembly when many participants had left or were preparing to fly out from Prague.

The debate has rumbled on ever since, on television, in the pages of books and in public talks. But the latter expert turned down the offer, stating: "I don't have opinions that I require other people to have. The flyby of Pluto is unlikely to provide any information relevant to a change in Pluto's status. But it will bring into clear focus once more what is, and what isn't, meant by the term "planet".