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Planetarium at Western Kentucky University    Hardin Planetarium
Invisible Universe:  Viewing Our Cosmos In A Different Light
Let's get a different perspective.   We are simply bystanders in
our vast universe, learning about the cosmos by analyzing the
light that shines across space. Our eyes do an excellent job of
showing us the sunlit world. This serves us well, since most of
the energy generated by our Sun and the stars is limited to the
rainbow colors that we know as visible light. But visible light
is just a tiny portion of the entire electromagnetic spectrum.
Humans can't see infrared, radio, ultraviolet, x-rays or gamma-
rays. In the last generation, however, we've developed powerful
high-tech tools to explore the invisible parts of the  universe
and uncover secrets that are only told with light we can't see
with our eyes. Join the staff at Hardin Planetarium as we
explore the fantastic mysteries of the electromagnetic spectrum
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