Guiding us through Einstein's theory of relativity, quantum mechanics, and string theory, Astronomical explains the baffling mysteries of the cosmos: from alien

Since the dawn of humankind, people have looked upward to the heavens and tried to understand them. This encyclopedia takes you on an expedition through time an

Explore the evolution of astronomy from Dante to Einstein, as seen through the eyes of trailblazing Victorian astronomer Mary Acworth Evershed In 1910, Mary Acw

These five study guides, available for each book in the Wonders of Creation series, are comprehensive and invaluable for teaching settings. With terms, short an