Stars

Our galaxy, the Milky Way, has about 300 billion stars and it is on a collision course with the next closest galaxy, Andromeda, which has about one trillion stars. To illustrate how big the universe is when that collision occurs it is unlikely that any stars will collide. Even though there are hundreds of billions of stars rushing toward one another they will all miss because the distances between them are so great. If a star were the size of a golf ball the next nearest star would be 732 miles away. Not much chance of colliding.