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.
Jamie Sevigny
Career Profiles
Management Engineer
Airborne & Space Telescopes
Backgrounders
Learn about telescopes that do their work high in Earth’s atmosphere and in space.
Optical Telescopes
Backgrounders
Learn about the history of telescopes and the function of refracting and reflecting optical telescopes.
Radio Astronomy
Backgrounders
Learn about radio astronomy, a type of astronomy that studies objects in space using radio waves and radio telescopes.
SETI - The Search for extraterrestrial Intelligence
Backgrounders
Some astronomers are not looking for stars, planets or galaxies. They are searching for intelligent life in the universe beyond our planet.
Thomas Graham
Career Profiles
Research Scientist, Space Farming
Mike Dixon
Career Profiles
Professor and Director of CESRF
Carl Dixon
Career Profiles
Naval Communicator
Keven Bruce
Career Profiles
Tactical Weather Specialist
Alexis Dorais
Career Profiles
Remote Sensing Analyst
Carbon Dioxide on Earth and on the ISS
Backgrounders
Carbon dioxide is an important part of the air on Earth and in space. What is carbon dioxide? How is it measured? How can it affect us mentally and physically?
Why do we have seasons?
Backgrounders
Learn why seasons change. Discover how they’re different in the Northern and Southern hemispheres.
The Optics of Telescopes
Backgrounders
Learn about telescopes, how they work & why they're important to astronomers.
Why is everything so small down there?
Hands-on Activities
Explore how we see things far and near and from different angles. It's all about perspective!