1
vote
1answer
51 views

Rotational speeds of the material forming planets should increase, not decrease

We know that planets form as a result of gaseous material revolving around a center of mass that froze to form planets. However shouldn't the angular speed of that matter increase as they go closer to ...
8
votes
1answer
167 views

Why does a planet rotate and revolve?

Why do planets rotate and revolve in the universe?