Massive 'Rogue Planet' in the Outer Solar System? Over 900 Large Objects Beyond Neptune Scientists Say (+Video)

Massive ’Rogue Planet’  in the Outer Solar System? Over 900 Large Objects Beyond Neptune Scientists Say. 

The known Solar System can be divided into three parts: the rocky
planets like Earth, which are close to the Sun; the gas giant planets,
which are further out; and the frozen objects of the Kuiper belt,
which lie just beyond Neptune’s orbit.

Something strange emerged when  Scott S. Sheppard (Carnegie Institution for Science) and his colleague, Chad Trujillo of the Gemini Observatory, compiled data for the orbits of Sedna, 
2012 VP113 and 10 icy objects that lie close to Pluto. 
Similarities in the 12 objects’ paths around the sun strongly suggest that all 12 are under the spell of a hulking, far-distant planet, Sheppard says.

This planet, if it exists, is up to 10 times as massive as Earth and 200 to 1,000 times as far from the sun. It’s so big that it has forced the smaller bodies, which like to keep away from large ones, into unexpected paths. 

This super-Earth may have begun its life in the central solar system before becoming a “rogue planet,” ejected from its birthplace to exile in the outermost solar system. 
It may have pulled Sedna and 2012 VP113 along with it from their homes closer to the sun. 

From the amount of sky area searched, Trujillo and Sheppard determine that about 900 objects with orbits like Sedna and 2012 VP113 are out there with sizes larger than 1000 km and that the total population of the inner Oort cloud is likely bigger than the Kuiper Belt and main asteroid belt.  ”
Some of these inner Oort cloud objects could rival the size of Mars or Earth.  This is because most of the inner Oort cloud objects are so distant that even very large ones would be too faint to detect with current technology”, says Sheppard.      

Read more here:
http://home.dtm.ciw.edu/users/sheppard/inner_oort_cloud/

Scott Sheppard and Chad Trujillo Discover a Dwarf Planet on the Fringe of the Solar System
https://dtm.carnegiescience.edu/news/scott-sheppard-and-chad-trujillo-discover-dwarf-planet-fringe-solar-system

Dwarf planet stretches Solar System’s edge
http://www.nature.com/news/dwarf-planet-stretches-solar-system-s-edge-1.14921

New Dwarf Planet Found At The Solar System’s Outer Limits
http://www.npr.org/sections/thetwo-way/2014/03/26/294358647/new-dwarf-planet-found-at-the-solar-systems-outer-limits

NASA Supported Research Helps Redefine Solar System’s Edge
https://www.nasa.gov/content/nasa-supported-research-helps-redefine-solar-systems-edge

http://www.planetary.org/blogs/emily-lakdawalla/2014/03261345-a-second-sedna-what-does-it-mean.html?referrer=https://www.google.gr/

Image credit: NASA