
19
November
RASCTO Speaker's Night: Structure, Composition, and Internal Dynamics of Rocky Planets [Online Only]
Join us as Prof. Charles-Édouard Boukaré explores the Structure, Composition, and Internal Dynamics of Rocky Planets

6
December
DDO Astronomy Family Night - December 2025 - The Blue Marble
Families will be introduced to the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities!

30
November
DDO: Sunday Sungazing - November 2025
Safely observe the sun with us!
During these family-friendly sessions, a DDO Astronomer will answer your questions about our closest star: the sun!

1
November
DDO Astronomy Family Night - November 2025 - Howl at the Supermoon
Families will be introduced to the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities!

26
October
DDO: Sunday Sungazing - October 2025
Safely observe the sun with us!
During these family-friendly sessions, a DDO Astronomer will answer your questions about our closest star: the sun!

11
October
DDO Astronomy Speaker's Night - October 2025 - The Stunning View from Planet Earth
Experience a presentation led by astronomy experts and researchers and tour the observatory.

3
October
DDO Astronomy Family Night - October 2025 - It's A Bird, It's A Plane, It's Supermoon!
Families will be introduced to the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities!

15
October
RASCTO Speaker's Night: Quasars: Black Holes You Can "See" [Online Only]
Join us as Prof. Patrick Hall explores Quasars.

24
October
RASC Toronto Centre Fall Winter Star Party at CAO 2025
The cold crisp nights of winter contain many wonderful and bright winter constellations and deep sky objects, but they can come with numb fingers and cold toes, treacherous driving conditions, and equipment challenges.
4
October
International Observe the Moon Night 2025 (GO for Saturday)
Join us for International Observe the Moon Night to learn about lunar science and exploration, take part in celestial observations, and honor cultural and personal connections to the Moon.