Lively and authoritative, this survey by a renowned physicist explains the formation of the galaxies and defines the concept of an ever-expanding universe in si

A respected physics professor and author breaks down the great debate over the Big Bang and the continuing quest to understand the fate of the universe. Today,

George travels to the future in the epic conclusion of the George’s Secret Key series from Lucy Hawking. When George finds a way to escape the spacecraft Arte

George is heartbroken when his neighbor Annie and her father move to Florida, but when Annie sends him a message telling him she has been contacted by aliens wi

George and Annie are off on another cosmic adventure inspired by the Mars Expedition in the fifth book of the George’s Secret Key series from Stephen and Lucy