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Over the course of a year, to an observer on Earth, the Sun travels from extreme North in June to South in December, and back again. The Se...
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This is an important topic. I will not discuss it. Here is a graph I have been working on to try to understand this question. What times ... -
A link to a National Geographic webpage: Milestones in Space Photography. Can we agree that our home is a very, very fine home, and that ...
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