Wednesday, March 1, 2023 to Wednesday, April 5, 2023
Wondering what's happening above your head in the sky this month?
Find out more about the Zodical Light to the Messier Marathon to everything in between, including comets, planets and spaceflights!
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.
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 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!
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.
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 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!
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 online to learn basic astronomy that you can do on your own from your backyard!
We'll share tips on encouraging girls to engage in astronomy and highlight the women of Harvard who laid the foundation of modern astronomy.
Wednesday, May 10, 2023 - 8:30am to Friday, May 12, 2023 - 6:00pm
AstroEdu 2023 will bring together researchers, teachers, and students from across the world to discuss the latest developments in astronomy education at all levels.
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 chance to observe brilliant Venus through our telescopes!
Friday, June 23, 2023 - 7:00pm to Saturday, June 24, 2023 - 12:00am
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
Observe the Moon and stars and brilliant Venus looking like a crescent moon through our telescopes!
Friday, July 21, 2023 - 7:00pm to Saturday, July 22, 2023 - 12:00am
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
Observe the Moon and stars through our telescopes! (We might even catch Saturn if it rises high enough before midnight.)
Friday, August 25, 2023 - 7:00pm to Saturday, August 26, 2023 - 12:00am
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
Observe the Moon, stars and Saturn at its best through our telescopes!
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
Observe the Moon, Jupiter, Saturn, and stars through our telescopes!
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
Observe the Moon, Jupiter, Saturn, even Uranus and Neptune and stars through our telescopes!
