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20 April

City Star Party: Bayview Village Park - April 2026 (GO for Monday)

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.
15 April

RASCTO Speaker's and Social Night: To The Moon - With Robots and Humans

Join us as Dr.Gordon "Oz" Osinski explore the Artemis Missions and the journey of returning to the Moon!
10 April

DDO Astronomy Family Night - April 2026 - Da Vinci Glow

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!
10 April

DDO How to Use Your Telescope - April 2026

Do you have a telescope, but don’t know how to use it? Come to the Richmond Hill David Dunlap Observatory can help! Bring your telescope to this workshop to have it assessed and to receive one-on-one instruction on its use outdoors!
4 April

DDO Tom Talks Astronomy: "The Quest for Alien Life - Are We Alone?"

Join us for a family-friendly, multimedia talk hosted by TEDx speaker Tom Vassos!
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!