In 1992, Dr. Mae Jemison made history by spending eight days in Earth's orbit, making her the first black woman ever to visit space. Twenty years later, Dr. Jem

Table of contents

The past decade has delivered remarkable discoveries in the study of exoplanets. Hand-in-hand with these advances, a theoretical understanding of the myriad of

The past few years have seen an incredible explosion in our knowledge of the universe. Since its 2009 launch, the Kepler satellite has discovered more than two

Describes the science of planet hunters, the prospects for the discovery of alien life, and discusses the controversies surrounding extrasolar-planet research.