Seeing the Universe

Beyond visible light is ultraviolet... remember the sun block?

The Extreme Ultraviolet Explorer Mission


Chandra X-Ray Observatory

High Energy Astrophysics Science Archive Research Center

Rossi X-ray Timing Explorer (RXTE)

Then, at shorter wavelengths and-see the pattern-higher energies, x-rays... produced at temperatures of 10 million degrees or so.


And then at even higher energies, and even shorter wavelength-gamma rays... created at temperatures of billions of degrees!

The Compton Gamma Ray Observatory

Gamma-Ray Astrophysics Team


So now you get the picture... longer wavelengths, lower energies, cooler temperatures...

Shorter wavelengths, higher energies, higher temperatures...



Electromagnetic Spectrum
The electromagnetic spectrum explained in simple terms using real-life examples.

Imagine the Universe
An introduction on the electromagnetic spectrum including why we need to go into space to see the entire spectrum.

Electromagnetic Spectrum
This site explains each type of electromagnetic radiation, its uses and the dangers from too much exposure to the radiation.

Interactive Multimedia Adventures for Grade-school Education Using Remote Sensing (IMAGERS)
A simple explanation of electromagnetic radiation including each type of radiation, how we "see" using that type of radiation and what that type of radiation shows us.

NASA's Observatorium
An introduction to the electromagnetic spectrum.

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