Seeing the Universe
X-rays help us study black holes resulting from the death of stars, but what exactly are x-rays, and how does an x-ray telescope help us explore the Universe?
Launched in 1999, the Chandra X-ray Telescope is the 3rd of what NASA calls its "great observatories"... and the first dedicated to studying the X-ray Universe.
Second to reach orbit was the Compton Gamma Ray Observatory... returning amazing data about some of the most energetic phenomena in the Universe.
3 space telescopes each specialising in different regions of the the electromagnetic spectrum...
Imagine the Universe
Electromagnetic Spectrum
Interactive Multimedia Adventures for Grade-school Education Using Remote Sensing (IMAGERS)
NASA's Observatorium
First of the great observatories to launch was the "Hubble Space Telescope"... imaging stars and galaxies in visible light as well as ultraviolet and infrared.
What is this "spectrum"? And why do we need telescopes with different capabilities?
An introduction on the electromagnetic spectrum including why we need to go into space to see the entire spectrum.
This site explains each type of electromagnetic radiation, its uses and the dangers from too much exposure to the radiation.
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.
An introduction to the electromagnetic spectrum.