Free,self-guided tours of the DDO resume 1-5 PM on May 31st, the 90th anniversary of the RHDDO!

We are piloting a new City Star Party at Long Branch Park to catch universe from within the city limits. If you don't have a telescope then you will find many astronomers who would love to share a view.

Join us as Ethan R. Siegel, Ph.D., explores the James Webb Space Telescope.

Join us for a world-wide live stream of events from here and from around the world hosted from the David Dunlap Observatory!

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!

Experience a presentation led by astronomy experts and researchers and tour the observatory.

Experience a presentation led by astronomy experts and researchers and tour the observatory.

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!

Celebrate International Astronomy Day with a Global Star Party at the Richmond Hill David Dunlap Observatory.

Join us as Dr. Nadine Manset, Director of Science Operations at CFHT explores the Canada-France-Hawaii Telescope.