#3 Water
Image Source: Simon Harrod
As we all know, and as scientists are always quick to point out when the topic of life on other planets is concerned, there is no life without water. Beyond the fact that we, as human beings, are to a large degree, made of water, there are still new discoveries being made about this incredible building block of life. Considering only how water is distributed around our world just as we and all other life forms require it suggests that its existence and behavior is no accident.
