The Mars Opposition is our best opportunity to observe the Red Planet for the next several years. Join us at the David Dunlap Observatory to stage the next Martian Invasion of Richmond Hill.

This weekend tour introduces families to the wonders of astronomy through an indoor planetarium experience, craft activities for younger visitors and stargazing. Visitors will spend time in both the main building and observatory visiting the 1.88m (74") telescope, learning its history and getting to see celestial objects firsthand (weather permitting).

This weekend tour introduces families to the wonders of astronomy through an indoor planetarium experience, craft activities for younger visitors and stargazing. Visitors will spend time in both the main building and observatory visiting the 1.88m (74") telescope, learning its history and getting to see celestial objects firsthand (weather permitting).

Speaker: Paul Delaney, University Professor, Physics & Astronomy, York University

Join us to view the Perseid Meteor shower on Thursday evening August 11, 2016  WEATHER PERMITTING Please check our website www.theDDO.ca after 6pm on August 11 to check if the weather and sky conditions permit viewing of the meteors. This event will be cancelled if weather conditions are poor. If the weather permits observing the meteors, the gates will open at 9:00 pm, EDT. Event ends at Midnight.

Star Talk nights offer great talks by great speakers on astronomy, space science and sometimes, science fiction. You'll also have a chance to tour the Observatory and (weather permitting) check out the night sky through a variety of telescopes set up on the lawn and through the big scope in the Main Dome.  If the weather gods are angry, you can check out the (virtual) night sky in our special Skylab. Star Talk nights run regardless of weather conditions.

Dr. Rachel Ward-Maxwell, Ontario Science Centre

Apollo 11 - Some things you probably didn't know about the moon landingRandy Attwood, Executive Director, Royal Astronomical Society of Canada Star Talk nights offer great talks by great speakers on astronomy, space science and sometimes, science fiction. You'll also have a chance to tour the Observatory and (weather permitting) check out the night sky through a variety of telescopes set up on the lawn and through the big scope in the Main Dome.  If the weather gods are angry, you can check out the (virtual) night sky in our special Skylab.

Family Nights are a great introduction to the night sky for our younger (and older) guests. Look through telescopes, make some space crafts, visit the Skylab and find out what's really up there!

Family Nights are a great introduction to the night sky for our younger (and older) guests. Look through telescopes, make some space crafts, visit the Skylab and find out what's really up there!