Question

According to string theory, the universe is ever expanding and the only form of energy pushing it apart is the aftermath of the big bang. Doesnt this violate the Newtonion Laws of Physics. As it states that with no external force acting on the body, it cant expand. And string theory says that the universe expands forever. How. NO USELESS ANSWERS please.​

Answer 1

Explanation:

The universe doesn't expand into anything since there is no space outside and doesn't need existing space it however it may look like it is expanding to someone watching but this is just because the galaxies are moving farther into the distance. This happens because of dark energy pulling them apart.