Learn about the search for elusive dark matter using observations of the cosmic web and the relic radiation from the Big Bang from Dr. Rogers, a Dunlap Fellow at the University of Toronto, tour the observatory and view a celestial object through the 74” telescope

Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square. Observe the Moon, stars, and an excellent opportunity to observe Venus through our telescopes!

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.

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.

Join us as we discuss the philosophical definitions of life, the complexities of biosignature, and life as we don’t know it as we reach beyond Earth on our journey to discover if we’re alone in the universe.

A gentle introduction to astronomy through the numerous misconceptions about all aspects of it.

Join us online to learn basic astronomy that you can do on your own from your backyard! We'll explain the dance of the inner planets in the evening sky, talk about conjunctions, elongations, and transits, and share some tips for safely viewing the inner planets. Galileo did it - so you can, too!

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

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.

Arnold Brody takes his turn at showing us the celestial highlights for the month of April and doesn't miss a chance to remind us about the Millennium Square Public Stargazing Event on April 28 that he is organizing. Arnold is a member of the Royal Astronomical Society of Canada - Toronto Centre and gave his presentation to the Recreational Astronomy Night Hybrid meeting held April 5, 2023 at the Ontario Science Centre.

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

Each year on the last Saturday of March, we at AstroTours honour Earth Hour and hope to bring awareness to issues impacting our planet. This year is no exception! Join us on March 25 for an evening of short talks and a Q&A panel with three scientists at the forefront of environmental research. Speakers: - Devon Gray, member of the Hydrometallurgy group at Hatch