Tenth planet discoverd - one third bigger than Pluto, three times as far

Posted on Wednesday, February 01 2006 @ 22:50 CET by Thomas De Maesschalck
Today scientists confirmed the existence of a tenth planet in our solar system.

It's a very cold frozen world, with a temperature of -240 degrees Celsius. It takes 560 Earthly years to circle the sun once and it's more than 90 times farther from the sun than our planet is.

The planet is three times as far from the sun as Pluto and it's also bigger than Pluto, the smallest planet in our solar system. The planet is about 36 percent bigger than Pluto.
"To think that you could actually find something in our own solar system bigger than anything that had been seen in 150 years, just is sort of an amazing prospect," said Michael Brown, professor of planetary astronomy at the California Institute of Technology.

Brown is the astronomer who headed the discovery team. He says that if other scientists agree, it's time to start rewriting the textbooks: The sun now has 10 planets.

About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.

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Re: Tenth planet discoverd - one third bigger than Pluto, three times as far
by Anonymous on Tuesday, June 05 2007 @ 22:52 CEST
I am only in 3rd grade and found this website on google. I think this is a great discovery. I wanted to examen this website because of my science book from school. I love that Michael Brown found this discovery. I am exited to hear what the planets name will be. I hope I find out! Sincerly, 3rd grader