Our knowledge of the universe has increased tremendously over the last century, and our discoveries are not over - there remain scientific mysteries that the next generation of astronomers and planetary scientists will need to solve. This volume in the Greenwood Guides to the Universe series covers the Sun, and provides readers with the most up-to-date understanding of the current state of scientific knowledge. Scientifically sound, but written with the student in mind, The Sun is an excellent first step for researching the exciting scientific discoveries of the star at the center of our solar system.The Sun discusses all areas of research surrounding the subject, including: Sunspots and the solar surface; the many faces of the solar atmosphere; the solar wind and solar storms; and the long-term climate effects on the earth's atmosphere. The volume includes a glossary and a bibliography of useful resources for learning more about the subject.