Roy A Gallant

Text, photographs, paintings, and maps explore the history of astronomy, the solar system, the universe, and new space discoveries.

Describes the composition of minerals, their physical properties, and how they are formed.

Describes the atmosphere which makes life on earth possible, explores its effects on weather and climate, and examines what causes air pollution and what can be done it.

An in-depth look at Earth's waters and mankind's uses of water throughout history which includes ideas about planning better use of this critical resource in the future.

Discusses human evolution and the search for the earliest forms of humans, examining the Neanderthals, Homo erectus, the variety of fossils found in Africa, and the early apelike hominids.

Discusses the different types of sand dunes, how they form and move, the destruction they can cause, and the animal and plant life they support.

A guide to identifying constellations with an explanation of the mythology surrounding them.

Presents the theories, controversies, and latest scientific thinking on how the Solar System, the Earth, and the first biological organisms came to be and how the latter changed and adapted for survival. Includes a glossary of terms.

Explains why water, although common, has characteristics which make it an unusual substance.

Discusses the formation and movement of glaciers, how they reflect the history of the earth, and how they affect life around them.