To understand X-ray astronomy, it is necessary to talk about light
and how it works. The
Imagine the Universe! website hosted at
NASA's Goddard Space Flight Center has a great tutorial about the
electromagnetic spectrum, and how astronomers are just now starting
to see the Universe in its full range of colors.
The pages listed below are just a sample of the information at that
If you have any questions concerning XMM-Newton send e-mail to email@example.com.