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19 April

Speaker's Night: "Intraterrestrial to Extraterrestrial: Deep Subsurface Microbial Communities and (Searching for) Life on Mars"

Join us as we discuss the philosophical definitions of life, the complexities of biosignature, and life as we don’t know it as we reach beyond Earth on our journey to discover if we’re alone in the universe.
29 April

Millennium Square Public Stargazing 2023 - April (NO-GO for Saturday)

Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square. Observe the Moon, stars, and an excellent opportunity to observe Venus through our telescopes!
29 April

Astronomy Speaker's Night: "A Search for Dark Matter in the Cosmic Web"

Learn about the search for elusive dark matter using observations of the cosmic web and the relic radiation from the Big Bang from Dr. Rogers, a Dunlap Fellow at the University of Toronto, tour the observatory and view a celestial object through the 74” telescope
30 April

DDO: Planetarium Day - April 2023

Enter a Digital Portable Planetarium and take a journey through the universe led by a DDO astronomer.
3 June

Astronomy Family Night - June 2023

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.
18 January

Speaker's Night: The dim and empty places: unveiling the nature of the universe in spectacularly modest environments (ONLINE)

Speaker Info: L. Arielle Phillips, PhD, Associate Dean College of Science Associate, Professor of the Practice of Physics and Astronomy, University of Notre Dame
4 June

DDO: Planetarium Day - June 2023

Enter a Digital Portable Planetarium and take a journey through the universe led by a DDO astronomer.
7 June

Recreational Astronomy Night - June 2023

Join us for our monthly recreational astronomy night meeting. This is where our members get to show their latest projects or give tutorials and tips on just about everything to do with astronomy.
24 June

Millennium Square Public Stargazing 2023 - June (NO-GO for Saturday)

Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square. Observe the Moon and stars and brilliant Venus looking like a crescent moon through our telescopes!
8 January

DDO: Planetarium Day (In person)

David Dunlap Observatory (DDO)