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22 September

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).
28 September

RASC Mississauga: Under Southern Skies

In this talk and slide show, Michael Watson will discuss his recent month-long trip to Australia, which included several nights of stargazing and astrophotography from the dark skies of the Australian Outback. He will talk about how he prepared for the trip, the equipment that he took, and how he produced the photos that you will see. His astrophotos will be interspersed with photos of some of the sights from around the Land Down Under.
3 October

Perimeter Institute: The Event Horizon Telescope (WEBCAST)

Dr. Avery Broderick will provide a highly accessible and interesting lecture on the Event Horizon Telescope (EHT) and international efforts to interpret horizon-resolving images of numerous supermassive black holes.
4 October

UofT AstroTour: 90 Degrees South: Astronomy at the End of the World

The South Pole, one of Earth’s most isolated outposts, is alive with science. And it's here where you'll find the 10-metre South Pole Telescope (SPT) observing the oldest light in our Universe, the Cosmic Microwave Background—light emitted just after the Big Bang. In 2016, a next-generation microwave camera, SPT-3G, was installed on the telescope. This camera is allowing astronomers to map out the Cosmic Microwave Background in more detail than ever before, providing new information on clusters of galaxies, cosmic inflation, and particle physics. 
11 October

CIFAR Massey Talk 2018: Solving the mystery of fast radio bursts

Every day, as many as 1,000 extremely fast and powerful bursts of radio waves flash out of the sky from beyond our galaxy, and we know very little about them. Join Victoria Kaspi, Director of CIFAR’s Gravity & the Extreme Universe program, as she explains what we know, and describes a revolutionary new Canadian radio telescope that will soon help us solve the puzzle. Doors open at 6:30pm.
10 December

Recreational Astronomy Night

Join us for our monthly recreational astronomy night meeting at the Ontario Science Centre. This is where our members get to show their latest projects, or give tutorials and tips on just about everything to do with Astronomy. Talks start at 7:30 socializing starts at 7:00.
12 November

Recreational Astronomy Night

Join us for our monthly recreational astronomy night meeting at the Ontario Science Centre. This is where our members get to show their latest projects, or give tutorials and tips on just about everything to do with Astronomy. Talks start at 7:30 socializing starts at 7:00.
8 October

Recreational Astronomy Night

Join us for our monthly recreational astronomy night meeting at the Ontario Science Centre. This is where our members get to show their latest projects, or give tutorials and tips on just about everything to do with Astronomy. Talks start at 7:30 socializing starts at 7:00.
4 June

Recreational Astronomy Night

Join us for our monthly recreational astronomy night meeting at the Ontario Science Centre. This is where our members get to show their latest projects, or give tutorials and tips on just about everything to do with Astronomy. Talks start at 7:30 socializing starts at 7:00.
23 April

Recreational Astronomy Night

Join us for our monthly recreational astronomy night meeting at the Ontario Science Centre. This is where our members get to show their latest projects, or give tutorials and tips on just about everything to do with Astronomy. Talks start at 7:30 socializing starts at 7:00. Chris Vaughan - The sky this month Guy Nason - Recent adventures under southern skies Ed Treijs - Low impact, ten-year observing plan for the Moon's changing orbit *** Equipment swap table after the presentations ***