Five days of astronomical fun and discovery! Canada's largest astronomy and telescope show - AstroCATS! Check out the 57th annual General Assembly of Canada's Astronomical Society. For more information: http://events.rasc.ca/

Everyone is invited to join us and Durham Skies on June 10 for stargazing at the edge of Lake Ontario. Take a free look through different kinds of telescopes to get close-up looks at craters on the Moon, brilliant Mars, magnificent Jupiter with its moons, and the spectacular rings of Saturn. Learn the names of springtime stars and the constellation patterns they form. Peer deep into space and try your hand at spotting spot faint star clusters and nebulae.

Everyone is invited to join us and Durham Skies on July 15 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, magnificent Jupiter with its moons, and the spectacular rings of Saturn. Learn the names of summertime stars and the constellation patterns they form. Peer deep into space and try your hand at spotting spot faint star clusters and nebulae.

Join us to mark the arrival of NASA’s Juno spacecraft at the planet Jupiter with a musical performance, activities and special presentations on space flight and exploration - including observing the sky through telescopes (weather permitting). In the event of inclement weather, activities and presentations will proceed indoors.

Everyone is invited to join us and Durham Skies on August 12 for stargazing at the edge of Lake Ontario. Take a free look through different kinds of telescopes to get close-up looks at craters on the Moon and the spectacular rings of Saturn. Learn the names of summertime stars and the constellation patterns they form. Peer deep into space and try your hand at spotting spot 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.

Everyone is invited to join us and Durham Skies on September 9 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, and the spectacular rings of Saturn. Learn the names of late-summer stars and the constellation patterns they form. Peer deep into space and try your hand at spotting faint star clusters and nebulae.

Meet the Canadians behind NASA’s OSIRIS-REx sample return mission! Join the Canadian Space Agency and the Royal Ontario Museum for an evening with the scientists and engineers behind OSIRIS-REx as they return to Canada just days after the mission’s launch. Learn more about their quest to study the asteroid Bennu, and how Canada is involved. Moderated by Discovery Channel's Ziya Tong.

An immersive experience where the observer will witness a massive sculpture of the sun as it progresses through its life cycle. A deeply personal and highly evocative meditation on human mortality and people's individual place in the universe, this installation portrays the death of the star that sustains this planet.

This is the story of one of Toronto's historic observatories, built on a height of land between the Don and Black Creek watersheds, and the story of the man who built it. Join Helen Mills and Lynn Kirk for an exploration of the Beltline Trail and the topography of this industrial and post industrial neighbourhood. Lynn will tell the remarkable story of Bert Topham (1893-1962), an ordinary working man and WWI veteran who got interested in the stars while in the trenches. Bert taught himself astronomy and built an observatory on a hill north west of Dufferin and Castlefield.

Join Prof. Sheila Rowan—Director of the Institute for Gravitational Research in the School of Physics and Astronomy in the University of Glasgow—as she presents a free public lecture Gravitational Waves, a New Astronomy