The Harvard-Smithsonian Center for Astrophysics (60 Garden Street in Cambridge) will host its monthly Observatory Night on January 21 at 7:30PM on the topic of Sweating the Small Stuff: The Fun and Fear of Near-Earth Asteroids.  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, call 617-495-7461 or email  pubaffairs@cfa.harvard.edu.  Future Observatory events:

• February 18:  Monthly Observatory Night — Big Data to Big Art
• March 3:  Sci-fi Movie Night – “Gravity”
• March 17:  Monthly Observatory Night — Where Do Planets Come From?
• April 7:  Sci-fi Movie Night – “Fantastic Voyage”
• April 21:  Monthly Observatory Night — The Wild West of Star Formation
• May 19:  Author’s Night –The New Cosmos: Answering Astronomy’s Big Questions