To the Stars and Beyond: What’s On at the David Dunlap Observatory this Fall

“Astronomy compels the soul to look upwards and leads us from this world to another.”

~Plato

Raise your eyes to the sky and be amazed by the vast wonder above you: stars, planets, galaxies, supernovas, quasars, comets, black holes, and more… including things we haven’t even discovered yet! The telescope is the most important modern marvel that has brought us closer than ever to the great, wide universe in which we tiny earthlings orbit. Whether you are intensely fascinated with all things space, or you’re simply looking to enjoy a nice day out and maybe learn something new, set your sights on the largest telescope in Canada at the Richmond Hill David Dunlap Observatory.

From 1935 to 2007, this observatory was at the forefront of Canadian astronomical research. Stand in front of the large white dome where the telescope is housed, or within the stunning halls and foyers of the administrative building, and you are standing on the very spot where important studies have taken place. It is here where the first direct evidence was provided that Cygnus X-1 was a black hole, that pioneering measurements of the distance to globular clusters were made, and that it was discovered Polaris (a yellow supergiant star) was stabilizing.

… If you’re not into astronomy, each one of those is a pretty huge deal!

Because of its importance to Canadian, and even global astronomy, and its history in the region, in 2019 the David Dunlap Observatory was given a national historic designation by the federal government. If you’re a movie buff, you may recognize the observatory from several film and television appearances including NBC’s Hannibal, Netflix’s The Umbrella Academy, Showtime’s Lost Girl and Syfy’s Warehouse 13.

What’s on this fall at the David Dunlap Observatory

Self-guided and guided tours for all ages are available year-round, where you can explore the administration building and observatory to learn about the history of the land, experience the architectural features, and learn about Canada’s largest, 74-inch telescope. But if you’re looking for themed and seasonal fun, be sure to register for any (or all!) of these amazing programs, events workshops happening this fall.

Tom Talks Astronomy – September 26^th and October 31^st

Join the Richmond Hill David Dunlap Observatory for a special, family-friendly, multimedia talk hosted by author and TEDx speaker Tom Vassos. Discover fascinating facts about the universe, participate in fun quizzes, tour the observatory, and enjoy a demonstration of the 74” telescope pointed to an interesting celestial object.

Space Fun – September 27^th

Space kids: ignite your rocket boosters of imagination and experience the wonders of space through crafts, games, stories and songs about the seasons and the nighttime sky. Adult participation is required.

Saturn Programs – October 3^rd and November 20^th

Delight in the surprising facts of this giant planet made of gas and its many wonders, from its iconic rings, to its multiple moons, to its hexagonal polar storm. View Saturn through telescopes big and small, and participate in engaging activities.

Sun Fun – October 4^th

Learn all kinds of interesting facts about the Sun, which is the “star” of our solar system and source of all heat and life on earth, with an RHDDO-exclusive program.

Women in Astronomy – October 17^th

Celebrate the women who challenged and changed our understanding of the universe with this special event. Enjoy the Into Focus: Women in Toronto Astronomy exhibit, which includes photographs, scientific instruments and personal artifacts, all offering a glimpse into the legacy of women at the David Dunlap Observatory. You will also have the opportunity to look through telescopes including the largest telescope in Canada.

Halloween at the RHDDO – October 24^th

Have all kinds of spooky fun at this special Halloween-themed astronomy presentation. Fun for the whole family is on the ticket, with exciting activities like kid-friendly arts and crafts, trick-or-treating, costumes, and a view through the big, big telescope.

Astronomy Speakers Night – November 21^st

Spend an evening at this unique historical site with astronomy experts and researchers as they present on a variety of exciting astronomy topics. Join the speakers for additional activities outdoors, rain or shine. This is an event for all ages.

Learn a new skill with a Makerspace workshop

It’s okay if astronomy isn’t quite your thing. You can still enjoy the David Dunlap Observatory and its stunning architecture as you learn a new skill or master a specific piece of equipment. The Makerspace is a hands-on creative lab designed for makers of all skill levels. Spend time learning, experimenting and creating with a project across multiple media formats like digital fabrication, metalwork, woodworking, electronics, sewing, and more. 

With a Makerspace workshop, you will have access to professional-grade equipment, guided programs, and a supportive maker community. The Makerspace offers registered programs and workshops throughout the year, as well as membership options that provide access during Open Lab hours. Drop-ins are happening this fall, October 19^th and November 9^th.

Updated: September 25, 2026