Bring your own binoculars for a free, guided tour of the night sky.

Our monthly City Star Party is the place to catch universe from within the city limits at Bayview Village Park. If you don't have a telescope then you will find many astronomers who would love to share a view.

Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.

Free,self-guided tours of the DDO resume 1-5 PM on May 31st, the 90th anniversary of the RHDDO!

Safely observe the sun with us! During these family-friendly sessions, a DDO Astronomer will answer your questions about our closest star: the sun!

Join us as Ethan R. Siegel, Ph.D., explores the James Webb Space Telescope.

Our monthly City Star Party is the place to catch universe from within the city limits at Bayview Village Park. If you don't have a telescope then you will find many astronomers who would love to share a view.

Join us for our monthly recreational astronomy night meeting. This is where our members get to show their latest projects or give tutorials and tips on just about everything to do with astronomy.

Celebrate International Astronomy Day with a Global Star Party at the Richmond Hill David Dunlap Observatory.

Join us for a world-wide live stream of events from here and from around the world hosted from the David Dunlap Observatory!

Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.

Check out the May AstroTour! May AstroTours features Ayush, a 5th year PhD candidate in the Department of Astronomy and Astrophysics at the University of Toronto and an NSERC Canada Graduate Scholar about fast radio bursts, followed by exciting astronomy demos and telescope tours!