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Curtis Roelle

Curtis Roelle writes monthly on subjects relating to amateur astronomy and other topics associated with space exploration and space sciences. He spends his spare time observing the heavens from his Carroll County observatory. Web sites: StarPoints.org and Marstown.org
Star Points: On the occasion of its golden anniversary, looking back at the first moon landing

At landing there may have been as little as 30 seconds of fuel remaining. Nevertheless, Neil Armstrong and Buzz Aldrin became the first humans to land on the moon. The date was Sunday afternoon, July 20, 1969.

Star Points: From 'Leviathan' to Gran Telescopio, a history of the world's largest telescopes

The U.S. remained the aperture record holder until 2009 when a new debuted in the Canary Islands.The Gran Telescopio Canarias has an an aperture of 410 inches.

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