For the first time since 2016, the planet Mercury will pass between the Earth and the Sun, making it visible as a small dot against the Sun’s disc. While it will be an amazing sight to behold, looking directly at the sun is dangerous. So the experts from the Mississauga Centre of the Royal Astronomical Society of Canada will be setting up their properly-filtered telescopes at Riverwood to offer you safe, clear views of the transit.

This Fall and Winter, spend a Sunday afternoon in the OTHER dome at the DDO! Join us in the Starlab Digital Planetarium and take an interactive journey through the Universe, led by a DDO astronomer. Tour the night sky and see close-up views of galaxies, nebulas, and star clusters, view our Solar System's Planets and alien exo-planets, land on the moon, Mars - and the Sun, travel home to Earth from the edge of the Universe, hear Indigenous starlore, and watch immersive fulldome movies!

Have you ever looked through a telescope? Take a tour of the night sky through a telescope and snap a photo or two of your favourite celestial body. Learn about the phases of the Moon, get an up-close look at the planets, and gaze at the brightest stars (weather permitting).

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.

HAA welcomes Trevor Jones as our guest speaker for our first meeting at McMaster Innovation Park, our new home.

Speaker: Randy Attwood, FRASC, Mississauga Centre

Join us for the November AstroTour! Victor Chan, a PhD candidate at the University of Toronto's Department of Astronomy and Astrophysics, will be sharing his expertise on cosmology!

Since the discovery of the first exoplanets in the early 1990s, we have detected more than 4,000 worlds beyond our solar system. Many of these are similar in size to our Earth, leading to an obvious question: could any be habitable? For now, we typically only know the size and orbit of these planets, but nothing about their surface conditions. Although we cannot know for sure if these worlds could support life, we can use models to speculate on what we might find there.

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!

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.

This Islamic Heritage Month, join us and welcome Dr. Mubdi Rahman, a research scientist with the Dunlap Institute for Astronomy & Astrophysics.

Hey stargazers! Ever wonder how astronomers study the history of galaxies? If so, join ASX at our Star Talk on Wednesday, October 30, in Lash Miller Chemical Laboratories (LM), Room 161. Professor Jeremy Webb will be illuminating the nature of globular clusters, and how we can use them to better understand galaxies! The free, public lecture itself is from 7:00pm-8:00pm followed, weather permitting, by a free, public telescope viewing atop MP. Everyone is welcome!