A discussion on the science behind how exo-planets (planets outside our solar system) are discovered. How many have been discovered, and some of the unique features found within some of these planets (i.e planets in a triple star system or planets made out of diamond; yeah, that's real.) The science behind the possibility of a very large ninth planet at the very edge of our own solar system, and a discussion as to what kind of hospitable planets one might find lurking near our own system. Presented by UVAC (Utah Valley Astronomy Club).