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.

POSTPONED to Wednesday, August 22nd

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).

CAO is holding a joint fundraising event for our members and members of the Beaver Valley Bruce Trail Volunteers. These are the people who tend the trail near CAO and have visited us for an astronomy night last year. As a means of fundraising, we are presenting a day on the trails followed by a night under the stars. RASC members will be offered one of two guided hikes, a short one and a long one, at a trail near to the CAO but not the “normal” Margaret Paull side trail that we frequent.

Quench your thirst for astronomy! On Friday, August 17, at The Great Hall! It'll be another fun evening of pints, astronomy news, mind-expanding talks, games, prizes, and Dunlap merchandise for sale! Plus, following all the talks, there will be plenty of time for you to have all your cosmic questions answered by astronomers from the Dunlap Institute and the University of Toronto. We'll see you there!

Everyone is invited to join us and Durham Skies on the evenings of both August 17th and 18th 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, Venus, Mars, Jupiter and Saturn! 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.

Venus will be in the west at sunset. Venus will be the brightest object in the sky after the moon and the sun.

Let's explore High Park's amazing and mysterious bat populations and the astronomical wonders above us with the help of our new telescope!

Watch the recorded video: https://youtu.be/OW6QVd_U44E

Hover above the moon like an astronaut and get eye-to-eye with the planets. Find colourful stars, star clusters, bright nebulae and even another galaxy. 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. If you are thinking of buying a telescope, viewing with other people's equipment is the best way to make a good choice. If you have a telescope or binoculars, please bring it!

We are living in an incredible time in the life of the universe! Dr. Renée Hložek talks about the mysterious contents of the universe, including dark energy and dark matter and how they shape how our universe as it evolves with time.

Join an experienced team of astronomy educators for a professional development workshop that will improve your skills, material, and confidence in teaching astronomy!