In this app you will use the Drake Equation by selecting and changing the values of the different factors. You will be encouraged to ponder the possibility of intelligent communicating life elsewhere in the Milky Way and the rest of the universe. The Drake Equation also will inspire you to think about astronomy, astrophysics, biology, philosophy, psychology and more. Astronomers are hot on the trail of rocky exoplanets about the size of Earth, planets with enough gravity to hold an atmosphere,