Why are all planets round?

There was the medieval times when people believed the earth to be flat but now that we know our planet is round, a quetion rises in my mind. We see our eintire solar system and all the planets are round. There isnt a single square or flat planet. Even our sun is round which is why I was wondering why everything is round?

According to scientists, the shape was just ment to be. Durng the big bang, all the debris floating around Space came together to form round planets. I believe the shape of our planets is the way it is because of the shape of a higher power. The Sun is also round and I believe thats what caused the shapes of all the planets to be round. Thats why the debris from the big bang went around the sun. If the Sun were square there wouldnt have been the possibility of something orbiting the star.

When planets were forming and there was constant collision of debris, it was causing these new cellestial objects to revolve on their own axis. This also is a reason for the spherical or round shape of the planets. The debris were mended to take a circular shape due to the forces acting on them during the revolution. Another reason could be that it is the easiest of all geometrical shapes to just form on its own.   

  

Thanks for reading!