Earth-like Exoplanets, Volume Three reviews the rapidly expanding study of exoplanets and what these new worlds have revealed regarding planet types located in diverse circumstellar and planetary environments. Currently, Earth remains the only example for life on planets, but other Solar System bodies - Venus, Mars, and the Moon - provide important information about where and when life is possible. As life on Earth and the lack of detected life on bodies in, or near, the habitable zone of the Sun supply much of what is directly known about astrobiology, the possibilities of finding life out there is ripe for new discovery.