Martina Bona
Career Profiles
Process Discipline Specialist
What Causes Hot Things to Glow?
STEM Explained
Getting electrons excited by heat can cause certain materials to give off visible light when heated - like filaments in light bulbs.
Krysten Rutherford
Career Profiles
PhD Candidate, Oceanography
Airborne & Space Telescopes
Backgrounders
Learn about telescopes that do their work high in Earth’s atmosphere and in space.
Light and Its Properties
Backgrounders
Learn about light and its properties.
Reflection and Refraction
Backgrounders
Learn about reflection and refraction and meet Emily Altiere, a PhD student in physics who studies lasers.
How We See
Backgrounders
Learn about how human vision works as well as some common types of vision problems.
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.
Thermal Imaging
Backgrounders
Learn about uses of thermal imaging as a medical imaging technology.
Radiography & X-ray Imaging
Backgrounders
Learn about radiography and x-rays as a form of medical imaging technology.
Ophthalmic Imaging
Backgrounders
Learn about the history, function, uses, benefits and risks of ophthalmic imaging as a medical imaging technology.
Magnetic Resonance Imaging
Backgrounders
Learn about the history, function, uses, benefits and risks of Magnetic Resonance Imaging (MRI) as a medical imaging technology.