3
May
DDO Global Star Party for International Astronomy Day! 2025
Join us for a world-wide live stream of events from here and from around the world hosted from the David Dunlap Observatory!
14
June
DDO Astronomy Family Night - June 2025 - 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!
4
April
DDO Astronomy Family Night - April 2025 - Lyrids - April Showers
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!
3
May
DDO Global Star Party - International Astronomy Day!
Celebrate International Astronomy Day with a Global Star Party at the Richmond Hill David Dunlap Observatory.
24
October
Millennium Square Public Star Party - October 24 or 25, 2025
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
26
September
Millennium Square Public Star Party - September 26 or 27, 2025
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
29
August
Millennium Square Public Star Party - August 29 or 30, 2025
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
1
August
Millennium Square Public Star Party - August 1 or 2, 2025
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
4
July
Millennium Square Public Star Party - July 4 or 5, 2025
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
30
May
Millennium Square Public Star Party - May 30 or 31, 2025
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.