Possible 10th Planet Discovered

Scientists have found a new world orbiting our solar system. It’s more than 3 billion kilometers – about 1,864,113,580 miles – further away from the Sun than Pluto and 40 years away from Earth in a space shuttle. SCIENTISTS have found a new world orbiting the solar system – more than 3 billion kilometres further away from the Sun than Pluto and 40 years away from Earth in a space shuttle.

NASA is expected to announce today or tomorrow the discovery of the space object, which some experts believe could be a new planet.

It is provisionally known as Sedna, after the Inuit goddess of the sea.

The discovery of Sedna – 10 billion kilometres from Earth – is a testament to the new generation of high-powered telescopes.

Measurements suggest Sedna’s diameter is almost 2000km, or 6,561,680 feet – the biggest find in the solar system since Pluto was discovered 74 years ago. It is believed to be made of ice and rock, and is slightly smaller than Pluto.

The find will reignite the debate over what constitutes a planet. Some scientists claim even Pluto is too small to count as one.

According to astronomer Michael Brown of the California Institute of Technology, who discovered Sedna, there could be many other new worlds orbiting the Sun and waiting to be discovered.

“Sedna is very big, and much further out than previous discoveries,” he said. “I’m pretty sure there are other large bodies up there too.”

But physicist and cosmologist Paul Davies, of Sydney’s Macquarie University, said it was folly to describe Sedna as a planet. “It’s fun, it’s exciting, but let’s keep it in proportion,” Professor Davies said yesterday.

He said scientists had known for “a decade or so the solar system does not come to an abrupt halt” and there were a number of “planetessimals” or little planets, like Sedna.

The Australian: It’s another world …

33 Responses to “Possible 10th Planet Discovered”

  1. stephanie says:

    i think your site has really good facts about sedna the 10th planet.

  2. Kates says:

    You have facts on your website that i haven’t seen before… kept me interested and wanting to learn more!

  3. Wesley says:

    Interesting discovery about Sedna planet. I visited this site to learn of any such news regarding the possibility of a planet being behind the sun from the earths view -on earths same orbit and distance from the sun, so we would never be able to see it! Sound too far fetched?

  4. richrd estrella says:

    hey men wazzup! can you please add some information about the planet “Sedna”

  5. richrd estrella says:

    who discover the tenth planet

  6. Elliot Lee says:

    On 15 March 2004, astronomers from Caltech, Gemini Observatory, and Yale University announced the discovery of the coldest, most distant object known to orbit the sun. The object was found at a distance 90 times greater than that from the sun to the earth — about 3 times further than Pluto, the most distant known planet.

    The discovery was made on the Samuel Oschin Telescope at the Palomar Observatory east of San Diego on 14 November 2003 by the team of Mike Brown (Caltech), Chad Trujillo (Gemini Observatory) and David Rabinowitz (Yale).

    Because of its frigid temperatures, the team has named the object Sedna, after the Inuit goddess of the sea from whom all sea creatures were created.


  7. Kai says:

    sup um can u like give more info bout the planet,”Sedna”?

  8. Kai says:

    yo yo yo your website is my new homepage now cuz it’s so cool!

  9. big L says:

    this site is awesome i come to this site every day to see if you have new information on some planets. some call me a nerd but i love this site.

  10. can you dudes send a pitcure of sedna~s orbit for my class?

  11. Luver11 says:

    Hey I was wondering how long it took them to figure out that sedna was really a planet. Thanx a lot this is a really good site and I think that you should make another one but maybe on another planet.

  12. Hi. I enjoyed your site alot. Most other sites didn’t have as much information as yours did for my school project. And because of your site I got an A on my project wich was 1/2 of my grade.


  13. gigs says:

    Check out crystallinks.com loads of info on sedna, also on ESA site about sedna, just search google

  14. Anonymous says:

    I think it cool that we have a nother planet in the malky-way

  15. Anonymous says:

    5,000 happy fingers will leave you
    Feeling blue
    We win
    It’s all part of this thin’
    Which we
    Call life
    What’s there? How many?
    Scientists know plenny
    But wht about 10, and 11
    What else is there,
    up in the heavens.
    what aren’t we finding,
    our pschkey, nevermore blinding.
    Not any more.Why?
    We are primitive, no matter what.
    One day, hundreds more will be normal, aristotle, coppericus, who?
    I tell you. One day, on that day it will be over.
    In time we will all be forgotten.
    Maybe one day Terra.
    Truthfully telling,

  16. Anonymous says:

    ^_^ thx for the help finding about the planet sedna
    now I have my homework for my earth science thx a lot

  17. Anonymous says:

    love it

  18. Emily says:

    I don’t get it. everyone thinks this is a great site when it sucks. this site dosen’t have nearly as much information as some other sites i’ve been to. And i did a project too about sedna and I got a C because my teacher said that my information was all wrong. and it was the information from your site. everything else was great that was from other sites.

  19. Akhash says:

    your site has really good facts about The planet Sedna

  20. anonymus489 says:

    There is a farking 10th planet

  21. Abdel says:

    You know what, there is an ELEVENTH (11) planet, read this
    “When Joseph said unto his father : O my father! Surely I saw in a dream eleven planets and the Sun and the Moon…….” ( Quran, Yusuf : 4 )”

    1400 years ago this has been told; it is a true Living Miracle.
    Thank you scientists for all your dedication.

  22. Tori says:

    I am amazed that theres really a tenth planet!!!

  23. Patty Optekar says:

    I think we should name the 10th planet Pax for peace. A lot of others want to call it Planet x or something with x in it, but I thought why not name it something with actual universal energetic impact or just a “good” name like Pax meaning peace as we all so desperately need peace and hope in the world.

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