
25
May
DDO: Sunday Sungazing - April 2025
Safely observe the sun with us!
During these family-friendly sessions, a DDO Astronomer will answer your questions about our closest star: the sun!

21
May
RASCTO Speaker's Night: The James Webb Space Telescope: a cosmic story for the ages [Online Only]
Join us as Ethan R. Siegel, Ph.D., explores the James Webb Space Telescope.

8
May
City Star Party: Bayview Village Park - May 2025 (GO for Thursday)
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.

7
May
Recreational Astronomy Night - May 7, 2025
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.

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.

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!

2
May
Millennium Square Public Star Party - May 2, 2025 (GO for Friday)
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.

1
May
[AstroTours] Fast Radio Bursts: Cosmic Fireworks Light up the Universe
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!

16
April
RASCTO Speaker's Night: The Canada-France-Hawaii Telescope: a Journey through Space and Time [Online Only]
Join us as Dr. Nadine Manset, Director of Science Operations at CFHT explores the Canada-France-Hawaii Telescope.

11
April
DDO Astronomy Speaker's Night - What's Inside a Rocky Planet? - April 2025
Experience a presentation led by astronomy experts and researchers and tour the observatory.

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!

4
April
Millennium Square Public Star Party - April 4 or 5, 2025 (No-GO for April)
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.