The Harvard-Smithsonian Center for Astrophysics (60 Garden Street in Cambridge) will host its monthly Observatory Night on September 17 at 7:30PM on the topic of exploding stars.  The lecture is intended for high-school and older audiences but children are welcome.  Admission is free, no reservations are necessary, and seating is limited.  For more information, email  pubaffairs@cfa.harvard.edu.

Also this month, the Center will host a Lunar Eclipse Viewing on September 27, 9:30-11:30PM.  It will be a record-breaking eclipse (with the moon closest to the Earth) and the last total eclipse visible here until 2018.  Call 617-495-7461 to check for cancellation due to weather.