Articles
- Focal Plane (26)
- One Good Target (11)
- Rick's Picks (32)
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June ’25 – Rick’s Picks
All month: Mercury returns to the sunset sky as Jupiter departs, leaving Mars as the only planet on the evening stage, while the morning…
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May ’25 — Rick’s Picks
All month: the planets continue their exodus from the evening sky this month. Uranus is now lost in the solar glare – it will…
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Astronomy Fundamentals: A Look at the History of Alvan Clark Telescopes
In the 19th century, Alvan Graham Clark was one of the premier lens makers for telescopes. His craftsmanship was sought after and many observatories…
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The Cosmologist’s Puzzle: The Age and Expansion Rate of the Universe.
We are confused about how old the Universe is. Until recently, astronomers estimated that the Big Bang occurred between 12 and 14 billion years…
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April ’25 – Rick’s Picks
All month: the solar system balances morning and evening targets this month as Mercury, Venus, Saturn, and Neptune move into the predawn sky, while…