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Solar System

A family watches an eclipse

Eclipse Watching

Hands-on Activities

Things to do on solar eclipse day!

Child using box eclipse viewer

Three Ways to Make a Solar Eclipse Viewer

Hands-on Activities

Safely view a solar eclipse by making and using a pinhole solar eclipse viewer.

Katie Mack headshot

Katie Mack (she/her)

Career Profiles

Hawking Chair in Cosmology and Science Communication

I study of the fundamental physics of the universe.
Lunar lander floating above the moon, with the Earth in the background

Let's Talk Space Exploration Resources

Backgrounders

Discover a set of resources to develop background knowledge on the topic of space exploration.

Mars Perseverance rover

Exploration of the Planets in the Solar System

Backgrounders

Learn about how spacecraft have helped us learn about our Solar System.

Pluto lit by a distant Sun

Meet Our Dwarf Planets

Backgrounders

Learn about the dwarf planets in our Solar System.

Meteor seen through an opening in the trees

Meteoroids, Meteors and Meteorites

Backgrounders

Learn about where and when to find meteoroids, meteors and meteorites.

Jupiter’s atmosphere taken from NASA's Juno spacecraft

The Outer Solar System

Backgrounders

Learn about the amazing planets and moons of the outer Solar System.

ChaoticMind75 - iStock

Why is it colder in the winter even though the Earth is closer to the Sun?

Hands-on Activities

Learn why we have seasons in this hands on activity.

The planet Mars

What is your weight on another planet?

Hands-on Activities

Do you weigh the same on Jupiter as you do on Earth? Learn to calculate your weight on a different planet.

What would happen if a meteor hit Earth?

What would happen if a meteor hit Earth?

Hands-on Activities

Explore the effects of asteroid impacts in this hands on activity.

The rocky planets

The Inner Solar System

STEM Explained

Earth is covered in rocks. So are Mercury, Venus, Mars and the Moon. Does that mean the rocky planets are all the same?

Daedulus crater on the Moon

Impact Craters

Backgrounders

Learn about how craters are formed and about some of Canada's impact craters.

compass pointing north

How can I tell which way is north at night?

Hands-on Activities

Do you like to look at the stars? What can you identify in the night sky? Try finding some important constellations tonight!

Asteroids

Where Can We Find Asteroids and Comets?

Backgrounders

This backgrounder explains the difference between planets, dwarf planets and small solar system bodies, such as asteroids and comets.