The following is a calendar of community events in the Baton Rouge area from Friday-Thursday, Oct. 3. FRIDAY NIGHT LECTURE SERIES: 7:30 p.m., Highland Road Park Observatory, 13800 Highland Road. Series covering skygazing tips, physics phenomena, space programs, famous events and celestial histories and possible futures. Evening sky viewings follow at 8:30 p.m. Also, 7:30 p.m. Saturday. For ages 14+. Free. hrpo.lsu.edu.