and their data. In 1996 Marcy and Butler became the first Americans to discover a new planetary system, a planet orbiting 70 Virginis. The planet was detected using radial velocity measurements taken with the C. Donald Shane telescope at Lick Observatory. They went on to find 70 of the first 100 exoplanets to be discovered. In 1997 Butler became a staff astronomer at the Anglo-Australian Observatory in Sydney, Australia, leading the Anglo-Australian Planet Search. After thirty years of research into exoplanets, few systems have been found that resemble the Solar System. Since 1999, Butler has been a staff scientist at the Carnegie Institution for Science in Washington, D.C. As of 2001, his expressed goal was "to survey all 2,000 Sun-like stars out to 150 light-years." Awards Marcy and Butler have shared a number of prizes including the inaugural Bioastronomy Medal of the International Astronomical Union in 1997. In 2001, Butler and Marcy were awarded the Henry Draper Medal from the National Academy of Sciences "for their pioneering investigations of planets orbiting other stars via high-precision radial velocities." The Carnegie Planet Search Team, consisting of Marcy, Butler, Steven Vogt and Debra Fischer received the Carl Sagan Award from the American Astronautical Society and the Planetary Society in 2002. Butler received the Beatrice Tinsley Prize of the American Astronomical Society with Marcy and Vogt in 2002. Marcy and Butler were named Discover Magazine's "Space Scientists of the Year" in 2003. In 2011, Butler was elected to the American Academy of Arts and Sciences for his work in developing the precision Doppler velocity technique, "the most precise method to date" for observing planets that orbit nearby stars, and for his many discoveries of such stars. Butler was credited with a "central role" in changing "the way we look at our place in the universe." Bibliography See also List of stars with confirmed planets References 1960 births Living people American astronomers Winners of the Beatrice M. Tinsley Prize Discoverers of exoplanets Summer Science Program Fellows of the American Academy of Arts and Sciences San Francisco State University alumni