Why are the stars in the universe spherical and not square or rectangular?
the stars and planets in the universe have different sizes and masses, but they are all spherical. so why are they all spherical and not any other shape?
Tags : planets
Half of the wild animals of large forests may disappear as the planet heats up
from amazon to africa, wwf's report predicts catastrophic damage affecting 60% of trees and 50% of animals by the end of the century.