Observatory Night lectures will take place on the third Thursday of the month from January through May. Topics will range from exploding stars and monster black holes to marauding dark clouds and gas giant mysteries. As always, rooftop viewing will follow the talks when weather permits.
For details, see:
We will also hold Sidewalk Astronomy sessions on Friday, April 19th in Harvard Square and Central Square. (Rain date April 20th)
See http://www.cfa.harvard.edu/events/public_events.html for more information.