You are invited to the transit of Mercury viewing party at the E.C. Carr Astronomical Observatory (CAO) in Blue Mountains.  This daytime event is jointly hosted by the Blue Mountains Library and the Royal Astronomical Society of Canada - Toronto Centre and is open to the public. Monday, May 9, 2016.  Arrive any time after 10:00 am.

Here on earth, we can only see two planets pass between us and the Sun - and it doesn't happen every day! The last time we saw Mercury appear to glide across the face of the Sun was in 2006. The next time it happens is 2019. Join us for this special daytime event at the David Dunlap Observatory. The gates will open at 10:00 a.m. If the weather's clear, stop by for a (safe) peek at the Sun through a variety of solar telescopes. We'll be webcasting too! For obvious reasons, the big telescope will not be in use. There's no charge. Just drop by.

Join us this week if skies are clear!

It's AstroNuts' annual kids' space club fundraiser!

Join Sara Mazrouei as she discusses our Moon and how its history is linked to the Earth’s distant past.

Everyone is invited to join us and Durham Skies this May 14 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.

Celebrate International Astronomy Day with telescope observing, activities, crafts, and ‘Science Slam’ presentations by astronomers about strange, unbelievable, and mind-blowing discoveries in space.

Cloudy or clear, join us for programs including presentations in our Skylab and space-themed arts & crafts (Space Crafts!) and tours of the big telescope.

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!

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/