1
April
Recreational Astronomy Night - April 1, 2026
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.
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!
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!
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.
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.
18
March
RASCTO Speaker's Night: Venus: From Earth’s Twin to a World Apart [Online Only]
Join us as Megan explore long-standing fascination with the planet Venus and how early speculation of an Earth-like world gave way to a very different picture.
18
March
DDO March Break 2026 - Out of This World: The Solar System
The Solar System with all its planets, moons, and asteroids are all around us -- even in your own home!
14
March
DDO March Break 2026 - Space Action: Craters and Comets!
This March Break, join the David Dunlap Observatory to explore some of the dynamic action of space through comets, craters, and more!
4
March
Recreational Astronomy Night - March 4, 2026
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.
28
February
DDO Astronomy Family Night - February 2026 - Planets on Parade
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!
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!
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!