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Astronomy Know How Astronomy Know How- Provides information for amateur astronomers who want to know more about using their telescope for observing or imaging. Monthly newsletter. Astronomy Digest Astronomy Digest- [online] Free monthly Astronomy e-zine with current Astronomy news, and product reviews. Electronic Newsletter for the History of Astronomy Electronic Newsletter for the History of Astronomy- Published by the Working Group for the History of Astronomy in the Astronomische Gesellschaft. Subscription is free. Cool Universe Cool Universe- Find Astronomy news briefs, useful links, science features, book, website, TV/movie reviews.