Material World

Visible light is only part of what astronomers study. They use different types of telescopes to study the entire electromagnetic spectrum.

Light can be a type of pollution. Learn about the damage it causes to people and living things as well as how you can prevent it.

Getting electrons excited by heat can cause certain materials to give off visible light when heated - like filaments in light bulbs.

Ever go to pour ketchup on your fries… and nothing comes out? We’ll let the secrets about the viscosity of this non-Newtonian fluid out of the bottle!

Learn about light and its properties.

Learn about reflection and refraction and meet Emily Altiere, a PhD student in physics who studies lasers.

Learn about the history of telescopes and the function of refracting and reflecting optical telescopes.

Learn about radio astronomy, a type of astronomy that studies objects in space using radio waves and radio telescopes.

Some astronomers are not looking for stars, planets or galaxies. They are searching for intelligent life in the universe beyond our planet.

Learn about the history, function, uses, benefits and risks of Ultrasonography as a medical imaging technology.

Learn about uses of thermal imaging as a medical imaging technology.

Learn about radiography and x-rays as a form of medical imaging technology.

Learn about the history, function, uses, benefits and risks of Magnetic Resonance Imaging (MRI) as a medical imaging technology.

Learn about the states of matter, as well more about one state in particular - gas!