Huge Unknown Planet Lurks In Our Solar System, ‘Planet Nine’

By  //  January 21, 2016

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planet between the sizes of Earth and Neptune

ABOVE VIDEO: A huge planet thought to lurk on the outskirts of our solar system could upend the way we understand our cosmic neighborhood.

(Mashable.com) – A huge planet thought to lurk on the outskirts of our solar system could upend the way we understand our cosmic neighborhood.

New evidence suggests that a never-before-observed large planet between the sizes of Earth and Neptune may be circling the sun once every 10,000 to 20,000 Earth years.

If directly observed, this planet — nicknamed Planet Nine — could fill in a gap in our solar system that makes our place in the context of the Milky Way just a little more clear.

“Planet Nine” makes our solar system more like the other planetary systems we’ve been finding throughout the galaxy than it was before,” Mike Brown, co-author of a new study in the Astronomical Journal detailing the possible planet told Mashable in an interview.

“Throughout the galaxy, the most common type of planet is between the mass of the Earth and the mass of Neptune, and isn’t it weird that we don’t have this type of planet? And, it turns out, this is exactly what we have.”

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