Gas giant -- A gas giant (sometimes also known as a Jovian planet after the planet Jupiter) is a large planet that is not primarily composed of rock or other solid ... > full article

Extrasolar planet -- An extrasolar planet, alternatively termed an exoplanet, is a planet which orbits a star other than the Sun, and therefore belongs to a planetary system other than the solar system. The discovery of ... > full article

Equatorial bulge -- An equatorial bulge is a planetological term which describes a bulge which a planet may have around its equator, distorting it into an oblate spheroid. Because of a planet's equatorial bulge, its ... > full article

Asteroid belt -- The asteroid belt is a region of the solar system falling roughly between the planets Mars and Jupiter where the greatest concentration of asteroid orbits can be ... > full article

Brown dwarf -- Brown dwarfs were originally called black dwarfs, a classification for dark substellar objects floating freely in space which were too low in mass to sustain stable hydrogen ... > full article

Planet -- A planet is generally considered to be a relatively large mass of accreted matter in orbit around a star that is not a star itself. The International Astronomical Union (IAU) lists nine planets in ... > full article

Red giant -- A red giant is a large non-main sequence star of stellar classification K or M; so-named because of the reddish appearance of the cooler giant stars. As Earth's sun is of one solar mass, it is ... > full article

Definition of planet -- The definition of planet has proven elusive despite it being one of the best-known terms in ... > full article

Solar radiation -- Solar radiation is radiant energy emitted by the sun, particularly electromagnetic energy. About half of the radiation is in the visible short-wave part of the electromagnetic spectrum. The other ... > full article

Spitzer space telescope -- The Spitzer Space Telescope (formerly the Space Infrared Telescope Facility (SIRTF)) is an infrared space observatory, the fourth and final of NASA's Great ... > full article

The 12th Planet (The Earth Chronicles, Book 1)
Zecharia Sitchen's The 12th Planet is the starting point on a quest that spans six books and 20 years worth of ancient aliens, genetic manipulation, and scrutiny of linguistic minutiae. If we trust ... > read more

Roving Mars : Spirit, Opportunity, and the Exploration of the Red Planet
teve Squyres is the face and voice of NASA's Mars Exploration Rover mission. Squyres dreamed up the mission in 1987, saw it through from conception in 1995 to a successful landing in 2004, and serves ... > read more

Physics for Scientists and Engineers (3rd Edition)
Physics for Scientists and Engineers combines outstanding pedagogy with a clear and direct narrative and applications that draw the reader into the physics. The new edition features an unrivaled ... > read more

Lonely Planet Healthy Travel Africa (Lonely Planet Healthy Travel Guides Africa)
Getting the most out of your travels means staying healthy. Healthy Travel Africa is a user-friendly guide to minimising health risks for travellers to all parts of Africa, including Egypt. Written ... > read more

Field Notes from a Catastrophe
An argument for the urgent danger of global warming in a book that is sure to be as influential as Rachel Carson’s Silent Spring.Known for her insightful and thought-provoking journalism, New ... > read more

Essential Cosmic Perspective, The (3rd Edition)
The Essential Cosmic Perspective, Third Edition, built from the ground up on our new understanding of the universe, has been revised and streamlined to make it easier for readers to navigate and ... > read more

Elemental Geosystems, Fourth Edition
This book gives readers an accessible, systematic, non-mathematical, and visually appealing start in physical geography. It features a distinctive, holistic integration of human-Earth relationships, ... > read more

Gen-e-sis: The Scientific Quest for Life's Origins
Life on Earth arose nearly 4 billion years ago, bursting forth from air, water, and rock. Though the process obeyed all the rules of chemistry and physics, the details of that original event pose as ... > read more

The Privileged Planet : How Our Place in the Cosmos is Designed for Discovery
A convincing case that the rare, finely tuned conditions that allow for intelligent life on Earth are no coincidence, and that Earth was practically designed for ... > read more

Earth: Portrait of a Planet
This survey is the first to weave together the three major intellectual revolutions in the Earth Sciences that have occurred in the last forty years--the theory of plate tectonics, the ... > read more