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21 October

DDO Planetarium Day - October 2023

Enter a Digital Portable Planetarium and take a journey through the universe led by a DDO astronomer!
20 October

Astronomy Family Night - October 2023

Join us for the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by an age-appropriate celestial activities and a demonstration of the 74” telescope.
14 October

Sun Fun: Annular Solar Eclipse!

Join the Astronomers at the Richmond Hill David Dunlap Observatory Astronomers and experience the annular eclipse. Learn about the sun and practice safe solar observing!
18 October

Speaker's Night: When worlds collide: asteroids, comets and the Earth

Join us as Margaret Campbell-Brown, Professor at University of Western Ontario, presents about asteroids, comets and the Earth!
20 September

Speaker's Night: The Adventure of Space Science and Exploration: A Canadian Perspective (ONLINE)

Join us as John E. Moores, York Research Chair in Space Exploration, presents about Canadian Space Science and Exploration!
29 August

RASC National Society: The Insider's Guide to the Galaxy FINALE

Join us online to learn basic astronomy that you can do on your own from your backyard! The spring sky hosts both very bright stars and very dim galaxies. We'll talk about the system astronomers use to measure and report the brightness of celestial objects - from luminosity to absolute and apparent brightness, to surface brightness. Please note, this will be the last episode of Insider's Guide to the Galaxy.
29 September

Astronomy Speaker's Night: Taking Back the Night Sky: What We Can Do About Light Pollution

Come to the DDO where Quinton Weyrich, the outreach coordinator for the Royal Astronomical Society of Canada at the David Dunlap Observatory, as well as a regular Astronomer in Residence at Killarney Provincial Park in Killarney, Ontario, is presenting about the light pollution affecting the night skies!
27 September

Stargazing Night - September 2023 (GO for Wednesday)

Bring Your Own Binoculars and observe the sky from the David Dunlap Observatory!
24 September

DDO: Sunday Sungazing - September 2023

Safely observe the sun with us! During these family-friendly sessions, a DDO Astronomer will answer your questions about our closest star: the sun!
23 September

Astronomy Speaker's Night - Curiosity’s Got its Head in the Clouds: Eleven Years of Cloud Observations from Gale Crater, Mars

Come to the DDO where Conor Hayes, a PhD candidate in Physics and Astronomy at York University, is presenting about the Curiosity rover on Mars!