E is for Exoplanets

Exoplanet: An exoplanet is any planet located outside our solar system.  The Goldilocks Zone, or the Habitable Zone: The region around a star within which planetary-mass objects with sufficient atmospheric pressure can support liquid water at their surfaces. Translation: they can support intelligent life.  * The search for exoplanets has been in full tilt since the 1970s, but the first one was discovered by accident in 1992.  * Kepler is a space observatory launched by NASA to...