介绍:
Scientists said they have found evidence of a giant planet far out in our solar system.
In a statement, the California Institute of Technology – Caltech -- said this planet travels a strange "highly elongated orbit in the distant solar system."
The discovery was made by two researchers at Caltech: Konstantin Batygin and Mike Brown. They used mathematical modeling and computer simulations to find the planet.
So far, there have not been any direct observations of the planet.
"My jaw hit the floor," said astronomer Mike Brown, the moment he realized there might be a ninth planet.
The scientists said it would take this planet 10,000 to 20,000 years just to make one full orbit around the sun. The new planet, called "Planet Nine" has a mass about 10 times the size of Earth.
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