07. In space, since there is no gravity, how do the planets stay in the same exact orbiting sequence? Why don't they bump into each other? (A K2S Question)

From The Space Library

There is gravity in space. Indeed, the Sun's gravity extends all the way out to the farthest planets and beyond. That is what keeps the planets from escaping from our solar system. And they do not bump into each other because they are millions of miles apart.

---

Answer provided by Ed Frederick, Ph.D.

Question and Answer extracted from the book Kids to Space - by Lonnie Schorer

Buy This Book Click here