Information resources:

• Astronomy and space
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• Physics (including space physics)

• Relativistic physics
  • beginning of A brief discussion of general relativity

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Miscellaneous:

• Space art
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• Star Trek

• Reading picks

• Photo album
  • A photo album of churches

• What's new
  • What's new in 2013 Part 1
• Topical index
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• In my humble opinion
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494,191 hits in April 2013!
over 37,497,000 hits to date!

Banner image: taken by Galileo in 1992 (credit: NASA/USGS).

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Last modified 5 May 2013.
Copyright © 2001-2012, 2013 by Wm. Robert Johnston. All rights reserved.