The three greatest scientific mysteries, which remain poorly understood, are the origin of the universe, the origin of life and the development of consciousness

Most well-read, but non-scientific, people will have heard of the term OC Big BangOCO as a description of the origin of the Universe. They will recognize that D

The three greatest scientific mysteries, which remain poorly understood, are the origin of the universe, the origin of life and the development of consciousness

Discusses activities astronauts do while they're in space.