He is also an avid amateur astronomer and independent historian on the development of the telescope.Dr. Alan AgrawalWHAT: Heavenly Vision: Galileo's Telescopes and ObservationsWHO: Dr. Alan Agrawal, Mount Diablo Astronomical SocietyWHERE: Cushing "Mountain" Amphitheater, Ridgecrest Blvd., Mt. Tamalpais State ParkMap: [http://goo.gl/maps/iRRFR]WHEN: 2017-07-01 — 8:30pm, Saturday, July 1, 2017HOW: This FREE event is presented by Wonderfest, the Friends of Mt. Tam, the San Francisco Amateur Astronomers, and Mount Tamalpais State Park. Optional sky tour and telescope viewing will follow. Bring a flashlight and — even though mountaintop weather (above the fog) is often warmer than down at sea level — wear warm clothes in layers. If bad weather threatens, call 415-455-5370 after 4pm on event day. Newsletter