text: Venus is known as Earths sister planet but we don't know much about it and have never attempted going there. Venus is Earths sister planet because the text talks about how venus is the cloest planet to earth based on size and density. Also Venus has features like vlley, mountains, and craters like earth does and Venus shows that it was most likely covered in oceans long ago and could of supported various life forms. This is why we should explore venus because it is our sister planet