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
Planets
50% / 3 resp.
2
Comets
33% / 2 resp.
3
Astroid Belts
16% / 1 resp.
4
Kuiper belts
0% / 0 resp.