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Finding the date in Michel Rabagliati's Parc La Fontaine Artwork

The Eratosthenes Experiment done in real-time

Why the Moon looks prettier more often as summer begins to leave us

3 free apps to find constellations, visualize the Solar System, and spot the International Space Station

Early in the morning on Friday, November 19, the Moon will turn red. Here's how to see it.

What the Moon looked like on every Canadian federal election since 2000

The best meteor shower of the year will have a red crescent Moon if you're in the right spot

On the summer solstice, the Sun sets at "Montréal North"

Trouver un site d'observation dans votre quartier

A month-by-month guide to what's visible in the sky without leaving Montréal this summer