Star formation is incredibly inefficient. Compared to the available amount of gas in molecular clouds, only a few percent of the cloud forms stars. In this talk, I will talk about how dust is created, grows, and destroyed in the interstellar medium (ISM). Understanding the size and evolution of dust grains in ISM is significant in answering why star formation is a very inefficient process in the universe.

The Solar System with all its planets, moons, and asteroids are all around us -- even in your own home!

Join us online to learn basic astronomy that you can do on your own from your backyard! In honour of March Break and better weather, we'll look at the best sights to see in the late winter / early spring evening sky using a backyard telescope, binoculars, or just your eyes.

This March Break, learn about the sun and practice safe solar observing!

This March Break, join the David Dunlap Observatory to explore some of the dynamic action of space through comets, craters, and more!

Learn about the World Asterisms Project and hear from expert panelists about storytelling and astronomy.

Come out to learn the late-winter/early-spring constellations and enjoy stargazing behind the Courtice Community Complex.

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

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.

Wondering what's happening above your head in the sky this month? Find out more about the Zodical Light to the Messier Marathon to everything in between, including comets, planets and spaceflights!

Join us online to learn basic astronomy that you can do on your own from your backyard! With the moon waxing in the evening sky, this is the perfect time to watch the terminator slide across the giant and ancient lunar basin of Mare Imbrium.

Safely observe the sun with us, from the comfort of your home! During these family-friendly sessions, a DDO Astronomer will answer your questions about our closest star: the sun!