Learn: January 23, 2015

6 responses

Astronomers propose that beyond Pluto there are "at least two” undiscovered celestial bodies. What are they?

6 out of 6 answered

1
Planets50% / 3 resp.
2
Comets33% / 2 resp.
3
Astroid Belts16% / 1 resp.
4
Kuiper belts 0% / 0 resp.