The Planetary Society's Optical SETI Telescope was built solely to search for possible light signals from alien civilizations. Located at Oak Ridge Observatory in Harvard, Massachusetts, it is the first dedicated Optical SETI telescope in the world. Its 72-inch primary mirror also makes it larger than any optical telescope in the U.S. east of the Mississippi river.
After three days of presentations, voting, and extended discussions, the "Mars community," as represented by something over 100 scientists who decided to attend the second Mars Science Laboratory (MSL) landing site selection meeting in a process that was open to all, have narrowed down to six the number of potential MSL landing sites.
Unlike the Mars Exploration Rover mission, which featured two golf-cart-sized landers, this time we have only one giant, Volkswagen beetle-size. So at the end of this process we have to pick our favorite place on Mars, not our favorite two places.