About that Giant Planet Possibly Hiding in the Outer Solar System

Siding Spring Comet found by the WISE spacecraft. credit: NASA/JPL-Caltech/UCLA

An old story got new legs this week as word went viral of a possible new 9th planet in our solar system – a gas giant bigger than Jupiter – which could be hiding somewhere in the Oort Cloud, just waiting to be found.

An article this week in The Independent suggested the new planet, called Tyche, had already been found among data from the WISE mission. This prompted the WISE team to post a rebuttal on their Facebook page: “Not true. A pair of scientists published a paper stating that if such a big planet exists in the far reaches of the Solar System, then WISE should have seen it. That is true. But, analysis over the next couple of years will be needed to determine if WISE has actually detected such a world or not.”

To make sense of this all, Universe Today sought out a scientist who has looked at the outer solar system as much as anyone, if not more: Mike Brown, of Eris, Haumea and Makemake fame – to get his take on Tyche.

“Yes,” said Brown, “this is all getting pretty funny these days!” (…) Read the rest of About that Giant Planet Possibly Hiding in the Outer Solar System… (482 words)

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