19
June
Millennium Square Public Star Party - June 19 or 20, 2026
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
22
May
Millennium Square Public Star Party - May 22 or 23, 2026
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
24
April
Millennium Square Public Star Party - April 24 or 25, 2026
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
27
March
Millennium Square Public Star Party - March 27 or 28, 2026 (NO-GO for March)
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
18
February
RASCTO Speaker's Night: Cosmic Wonders with the James Webb Space Telescope [Online Only]
Join us as Nathalie Nguyen-Quoc Ouellette explores the discoveries by the James Webb Space Telescope!
21
January
RASCTO Speaker's Night [Cancelled]
[Cancelled]
29
March
DDO: Sunday Sungazing - March 2026
Safely observe the sun with us!
During these family-friendly sessions, a DDO Astronomer will answer your questions about our closest star: the sun!
22
February
DDO: Sunday Sungazing - February 2026 [Online Only]
Safely observe the sun with us from home!
During these family-friendly sessions, a DDO Astronomer will answer your questions about our closest star: the sun!
27
March
DDO Astronomy Family Night - March 2026 - Constellations: Connecting the Dots
Families will be introduced to the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities!
21
March
DDO March Break 2026 - Sun Fun!
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.