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6 May

UofT Lecture: A Human Expedition to Mars [In-Person and Online]

Human exploration of the red planet has been seriously discussed since the 1940s, but no mission concept has gone beyond the planning stage. Why? Join Maria Zuber — the first woman to lead a science department at the Massachusetts Institute of Technology and the first to lead a NASA planetary mission — as she explores the possibility of a human expedition to Mars.
11 May

Doors Open Richmond Hill 2024 at the DDO

Join Heritage Services for a tour of our historic observatory and administration buildings.
11 May

Solar Observing at Ontario Science Centre - May 2024 (NO-GO for May 4)

Enjoy safe views of the Sun every first Saturday of the month at the Ontario Science Centre!
13 May

City Star Party: Bayview Village Park - May 2024

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.
17 May

Millennium Square Public Star Party - May 2024

Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
18 May

DDO Astronomy Family Night - May 2024 - 1

Join us for the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by an age-appropriate celestial activities and a demonstration of the 74” telescope.
21 May

DDO Bring Your Own Binoculars Stargazing Night - May 2024

Bring your own binoculars for a free, guided tour of the night sky.
24 May

DDO Astronomy Family Night - May 2024 - 2

Join us for the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by an age-appropriate celestial activities and a demonstration of the 74” telescope.
25 May

DDO Planetarium Day for Little Astronomers - May 2024

Enter a Digital Portable Planetarium and take a journey through the universe led by a DDO astronomer!
25 May

DDO Planetarium Day - May 2024

Enter a Digital Portable Planetarium and take a journey through the universe led by a DDO astronomer!
26 May

DDO: Sun Fun! May 2024

Join the David Dunlap Observatory Astronomers for an interactive session where participants will see live and pre-recorded telescope views of the solar surface, learn about our nearest star, and practice safe solar observing by making their own pinhole projector.
1 June

Solar Observing at Ontario Science Centre - June 2024

Enjoy safe views of the Sun every first Saturday of the month at the Ontario Science Centre!