![Lunar lander floating above the moon, with the Earth in the background](/sites/default/files/styles/resource_card_image_360x300_/public/2022-08/Untitled%20design%20%2812%29.png?itok=tAd3Suzb)
Let's Talk Space Exploration Resources
Backgrounders
Discover a set of resources to develop background knowledge on the topic of space exploration.
![Xiaoyi Bao](/sites/default/files/styles/career_image/public/2022-01/Xiaoyi%20Bao.jpg?itok=Qld9qH62)
Xiaoyi Bao
Professor and Canada Research Chair
![Light bulb and cord in shape of a head](/sites/default/files/styles/resource_card_image_360x300_/public/2020-11/light_bulb_head.jpg?itok=TahEJFB8)
Light and Sound Inventions that Changed the World
Lessons
Students will explore the societal impacts of inventions involving light and sound.
![The Jodrell Bank Lovell Telescope located in Cheshire, England](/sites/default/files/styles/resource_card_image_360x300_/public/2020-06/Jodrell_Bank_Lovell_Telescope.jpg?itok=TFL_abQu)
Telescopes and Astronomy
Backgrounders
Visible light is only part of what astronomers study. They use different types of telescopes to study the entire electromagnetic spectrum.
![Hubble Space Telescope as seen during a servicing mission in 2009](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/hubble_space_telescope.jpg?itok=eNoDBFx5)
Airborne & Space Telescopes
Backgrounders
Learn about telescopes that do their work high in Earth’s atmosphere and in space.
![Boy looking through telescope at night](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/telescope-boy-night.jpg?itok=13zWe-Od)
Optical Telescopes
Backgrounders
Learn about the history of telescopes and the function of refracting and reflecting optical telescopes.
![Radio Telescope array at night](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/radio-telescope-at-night.jpg?itok=Xj9MDhpb)
Radio Astronomy
Backgrounders
Learn about radio astronomy, a type of astronomy that studies objects in space using radio waves and radio telescopes.
![Adult and children looking through telescope](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/adult_and_children_looking_through_telescope.jpg?itok=eKeL_YGd)
The Optics of Telescopes
Backgrounders
Learn about telescopes, how they work & why they're important to astronomers.
![How do movies move?](/sites/default/files/2019-08/how-do-movies-move.jpg)
How do movies move?
Hands-on Activities
Explore the concept of persistence of vision in this hands on activity.
![woman with camera](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/woman_with_camera.jpg?itok=RPlx-udx)
Eye vs. Camera
STEM Explained
The human eye lets us see the world by sending impulses to our nervous system. In many ways, it is very similar to other optical devices, including cameras.
![Erin Secord | Conservator Erin Secord | Restauratrice](/sites/default/files/styles/career_image/public/erin_secord_13.jpg?itok=0R_dM78Q)
Erin Secord
Career Profiles
Conservator