Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square. Observe the Moon and stars and brilliant Venus looking like a crescent moon through our telescopes!

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.

Our resident expert, Chris Vaughan, on all things in Astronomy takes his hand at the Sky This Month for the period of June 7-July 5 2023.

Enter a Digital Portable Planetarium and take a journey through the universe led by a DDO astronomer.

Join us for the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by an age-appropriate celestial activities and a demonstration of the 74” telescope.

Join us at sunset to learn to use star charts and basic observing techniques, then use your binoculars to follow a guided tour through the night sky, and stay after the tour to practice your new skills.

A concert featuring words and music about the night sky. Music ranging from classical to jazz, pop to South Asian. Artists: Suba Sankaran, Patricia O'Callaghan, Larry Beckwith, Andrew Downing, Andrew Adridge, Lauren Estey. Two dates: - Friday May 26 at 7:30PM - Saturday May 27 at 7:30PM.

Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square. Observe the Moon, stars, and an excellent chance to observe brilliant Venus through our telescopes!

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.

Learn about the search for lunar water, highlighting key missions and technologies, as well as what the future may hold as we move into the Artemis era.

Join us at the DDO for a visit of the dome and check out the Administration building for Doors Open Richmond Hill!

AstroEdu 2023 will bring together researchers, teachers, and students from across the world to discuss the latest developments in astronomy education at all levels.