The real stars

JPL NASA

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Arachnoid.com

In 1826, the astronomer Heinrich Olbers asked, "Why is the sky dark at night?" By his time, physicists had learned enough to realize that, in a stable, infinite universe with an even distribution of stars, the entire universe should gradually heat up.

You will also discover the connection between a rubber band, your refrigerator, and the universe.

An Observation of the Night Sky
There is plenty here to keep you busy: Beginners will find the Tutorials very useful along with the Constellations and weekly Skycharts.
By Jerry Pool

Photographs:
Events in the night sky

StarDate Online
StarDate is the public education and outreach arm of the University of Texas McDonald Observatory.

English and Spanish radio programs air daily on more than 500 stations.

Fourmilab Switzerland
To make a sky map, enter the latitude and longitude of your observing site and press the "Make Sky Map" button

This site is developed and maintained by John Walker, founder of Autodesk, Inc. and co-author of AutoCAD.

Space Watch
by Imaginova Spaceware



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Labels: Activities, General, World