'Planet 9' Believed to Exist in Our Solar System, Scientists Say

The gas giant dubbed 'Planet 9' is thought to be almost as big as Neptune and orbiting distant enough to take 10,000 to 20,000 years to circle the sun.

Send in e-mailSend in e-mail
Astronomers find evidence of a ninth planet in the solar system - Caltech, Robert Hunt, Reuters

Scientists say they finally have "solid evidence" for Planet X, a true ninth planet on the fringes of our solar system.

The gas giant is thought to be almost as big as Neptune and orbiting billions of miles beyond Neptune's path — distant enough to take 10,000 to 20,000 years to circle the sun.

This Planet 9, as the two Caltech researchers call it, hasn't been spotted yet. They base their findings on mathematical and computer modeling, and anticipate its discovery via telescope within five years.

The two reported on their research Wednesday in the Astronomical Journal.

Once it's detected, the researchers insist there will be no Pluto-style planetary debate. They ought to know; one of them, Mike Brown, is the so-called Pluto killer.

Click the alert icon to follow topics:

Comments

SUBSCRIBERS JOIN THE CONVERSATION FASTER

Automatic approval of subscriber comments.
From $1 for the first month

SUBSCRIBE
Already signed up? LOG IN

ICYMI

The Orion nebula, photographed in 2009 by the Spitzer Telescope.

What if the Big Bang Never Actually Happened?

Relatives mourn during the funeral of four teenage Palestinians from the Nijm family killed by an errant rocket in Jabalya in the northern Gaza Strip, August 7.

Why Palestinian Islamic Jihad Rockets Kill So Many Palestinians

בן גוריון

'Strangers in My House': Letters Expelled Palestinian Sent Ben-Gurion in 1948, Revealed

AIPAC

AIPAC vs. American Jews: The Toxic Victories of the 'pro-Israel' Lobby

Bosnian Foreign Minister Bisera Turkovic speaks during a press conference in Sarajevo, Bosnia in May.

‘This Is Crazy’: Israeli Embassy Memo Stirs Political Storm in the Balkans

Hamas militants take part in a military parade in Gaza.

Israel Rewards Hamas for Its Restraint During Gaza Op