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Jim Colyer covers the basics of astronomy.
blocks of the universe. There are 300 billion galaxies. Some are distinctive. The Whirlpool and Sombrero look like works of art. Galaxies are categorized according to their structures. The Milky Way
Tags: Jim Colyer, astronomy, moon, solar system, sun, pl
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Jim Colyer takes his son to our nation's capital.
Memorial. We noted how Jefferson's statue faces the White House in the distance. I pointed out the cherry trees. We returned to the museums and art galleries along the Mall. We touched the moon rock
Tags: Jim Colyer, Washington, D.C., White House
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