Venus - Scientific Theories and Mysteries
About Venus, scientific theories for the unexplained mysteries of Venus.
Theories and Mysteries: The exact composition of the atmosphere is still uncertain, and many other questions also remain. It is not known why Venus rotates so slowly, nor why, whenever it is closest to Earth, the same side always faces us. It is not known why Venus should be so short of water, when it was presumably formed at about the same time and place as Earth. The internal composition of the planet can only be guessed at as yet, and we cannot tell if volcanoes or other geophysical processes are active. In many ways Venus is still a mystery.