New Planets Could Be Lurking Far Beyond Neptune
Scientists say planets located beyond Neptune could be altering the orbits of objects in the farthest reaches of our solar system.By Christian Bryant | January 21, 2015
Hearing about the discovery of new planets in nearby solar systems is exciting enough, but a new study claims to have evidence of undiscovered planets even closer to home — right here in our own solar system.
The study deals with a class of objects in the farthest reaches of our solar neighborhood. Objects past Neptune are called trans-Neptunian objects, or TNOs. For example, Pluto is a TNO. (Video via National Geographic)
And things even farther than that are called extreme trans-Neptunian objects, or ETNOs. Many of these distant objects don't move the way they should, and the brightest minds in astronomy have yet to figure out why. (Video via NASA)