earth

Discusses the history of how astronomers came to know the age of the universe, exploring the age of various celestial bodies within the universe and covering the inner workings of scientific inquiry.

Photographs and text capture the dramatic changes the earth has undergone over the last century, with paired images depicting various locations around the world that have been drastically altered by climate change, industrialization, natural disasters, and urban movement.

Explores how the earth would be different in ten alternative astronomical conditions, including how the planet would change if there was a second moon, if the moon orbited backwards, if the earth's crust were thicker, if there was a counter-Earth, if the sun were less massive, and if there were two suns.

Thousands of photographs, illustrations, diagrams, and maps along with detailed text, offer a comprehensive overview of the earth, covering the planet's history, creation, inner workings, structure, tectonic forces, climate, oceans, landscapes, inhabitants, and dangers.

Examines the techniques used by Eratosthenes, an ancient Greek, who came up with a calculation to measure the circumference of the Earth during an era when measuring distance was uncommon.

Contains over three hundred color photographs of Earth taken by orbiting satellites, providing information about the different landscapes of the planet, and includes maps and background details.

Contains a collection of articles that discuss trends in the study of how life on earth is affected by its orientation in the solar system.

Contains a collection of articles that discuss trends in the study of the planets, including information on their size, composition, and surface features.

Photographs, easy-to-read text, and illustrations provide facts about the record-breaking marvels of Earth.

Presents a term related to some aspect of the Earth and its physical features for each letter of the alphabet.