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

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

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 as Ms Maheen Hemani, York University Undergraduate, explores red-shifts of Galaxies!

Enjoy safe views of the Sun every first Saturday of the month at the Ontario Science Centre!

Join Heritage Services for a tour of our historic observatory and administration buildings.

Human exploration of the red planet has been seriously discussed since the 1940s, but no mission concept has gone beyond the planning stage. Why? Join Maria Zuber — the first woman to lead a science department at the Massachusetts Institute of Technology and the first to lead a NASA planetary mission — as she explores the possibility of a human expedition to Mars.

Check out the May AstroTour! May AstroTours features Shivan Khullar's talk on how stars form, followed by exciting astronomy demos and telescope tours!

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.

Join the David Dunlap Observatory Astronomers for an interactive session where participants will see live and pre-recorded telescope views of the solar surface, learn about our nearest star, and practice safe solar observing by making their own pinhole projector.

Join RASC at the Ontario Science Centre for a night under the stars!

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.