Skip to main content
15 September

DDO Family Night (WAITLIST)

This weekend tour introduces families to the wonders of astronomy through an indoor planetarium experience, craft activities for younger visitors and stargazing. Visitors will spend time in both the main building and observatory visiting the 1.88m (74") telescope, learning its history and getting to see celestial objects firsthand (weather permitting).
14 September

Millennium Square Stargazing Night (GO for Saturday)

Everyone is invited to join us and Durham Skies on the evenings of both September 14th and 15th for stargazing at the edge of Lake Ontario. Take a free look through different kinds of telescopes (including solar-filtered scopes) to get close-up looks at sunspots, craters on the Moon, Jupiter, Saturn and Mars!  Peer deep into space and try your hand at spotting faint star clusters and nebulae. You can even bring your own telescope along and we'll give you expert advice on how to use it better.
12 September

Recreational Astronomy Night

Watch the recorded video: https://youtu.be/u9_5wVDUg1g
11 September

Dark Sky Star Party (GO for Tuesday)

See the milky way and galaxies with the unaided eye. Point your telescope to find the many dim deep space objects that sprinkle the sky. Away from Toronto's light polution, there is so much to see. We observe from the Long Sault Conservation area, an hour outside of Toronto. We meet around dusk once a month in the parking lot for views only seen in dark sky conditions. We hold this event on the first clear night of our week-long window, so the date and time are determined closer to.
8 September
8 September

Solar Observing (GO for Saturday)

Join us at the Ontario Science Centre for our monthly Solar Observing on the TELUSCAPE observing pad. This is the area in front of the Science Centre's entrance. We use specialized telescopes that are safe to aim at the Sun. Check our home page on the Friday prior for go/no-go calls as this event is weather dependent.
6 September

UofT AstroTour: Mission to Pluto - From Napkins to New Horizons

In July 2015, the New Horizons spacecraft flew past Pluto, photographing the last unexplored major body in our solar system. Taking over 25 years from its original conception to its phenomenal photographic fly-by, New Horizons upended the space industry. We will explore the story behind the most unlikely expedition into our solar system, the development of the mission from scrap paper to the spacecraft itself.
25 August

DDO Speaker Night (WAITLIST)

This weekend program provides visitors with an opportunity to listen to an astronomy talk and enjoy stargazing. Visitors will spend time in both the main building and observatory visiting the 1.88m (74") telescope, learning its history and getting to see celestial objects firsthand (weather permitting).
25 August

Solar Observing (NO GO)

Join us at the Ontario Science Centre for our monthly Solar Observing on the TELUSCAPE observing pad. This is the area in front of the Science Centre's entrance. We use specialized telescopes that are safe to aim at the Sun. Check our home page on the Friday prior for go/no-go calls as this event is weather dependent.
24 August
23 August

Solar System Social: Who Deserves To Explore Space

Solar System Social is a space-themed speaker series that brings exciting ideas and research from the field of planetary science to the general public.This special event will be a panel discussion on the ethics, logistics, and politics of who deserves to explore space.
21 August