An unforgettable exploration of the natural world and the concept of biodiversity—what it is, why it matters, and how we as individuals can work to preserve i

There was a time when 'universe' meant all there is. Everything. Yet, as Brian Greene's extraordinary book shows, ours may be just one universe among many, like

Discover Vulcan’s geography and customs in this illustrated travel guide that “takes readers on an extensive tour of the Federation’s most logical planet�

Our eyes are the result of an evolutionary adaptation to the sun's light. Since the sun is a G dwarf and emits most of its light in only a small part of the ele

For over ten years, the dark side of the universe has been headline news. Detailed studies of the rotation of spiral galaxies, and 'mirages' created by clusters