Answer :

Besides the theory of gravity, he developed the laws of motion. He also discovered calculus which helped in the mathematic world. (I know that the calculus thing is not really part of the science. I just wanted to add to that just in case.)

Answer:

The solar system began as a slowly rotating nebula composed of dust and gas particles.

Explanation:

this answer is from my k-12 test and is the correct answer ;)