Statement 1: Planets revolving around the sun never collide.
Statement 2: Planets revolve around the sun in a definite path known as orbit. An orbit does not cross any other orbit.
Both the statements are true and statement 2 is the correct explanation of statement 1.
All planets revolve around the sun in a definite path known as orbit. Every planet has a unique orbit around the sun, which does not cross any other orbit. For this reason, none of the planets revolving around the sun collide.