The expanding universe

John R. Gribbin is a British science writer, an astrophysicist, and a visiting fellow in astronomy at the University of Sussex. - WikipediaJohn R. Gribbin (born 19 March 1946)is a British science writer, an astrophysicist, and a visiting fellow in astronomy at the University of Sussex.His writings include quantum physics, human evolution, climate change, global warming, the origins of the universe, and biographies of famous scientists. He also writes science fiction. -Wikipedia