Kepler Discovery Mission Presented by Harold Reitsema Ball Aerospace Abstract The Kepler Mission will use a unique spaceborne telescope specifically designed to search for Earth-like planets around stars beyond our solar system. To date, about 80 extra-solar planets have been discovered. However, these are all gaseous-giant planets and are unlikely to harbor life. None of the planet detection methods used so far has the capability of finding Earth-size planets - those that are 30 to 600 times less massive than Jupiter. The Kepler Mission will look for the 'transit' signature of planets. Three transits of a star, all with a consistent period, brightness change, and duration, provide a robust method of detection and planet confirmation. This periodic signature is used to detect the planet and to determine its size and its orbit. The measured orbit of the planet and the known properties of the parent star are used to determine if each planet discovered is in the habitable zone, that is, at the distance from its star where liquid water could exist on the surface of the planet. The Kepler Mission will hunt for planets using a specialized one-meter diameter telescope and an array of CCDs to measure the small changes in brightness caused by the transits. This NASA Discovery mission is scheduled for launch in 2006. Thursday, March 14, 2002, at 4:00 PM Auditorium 299 LASP Space Technology Building Campus Research Park Refreshments Served at 3:45 PM