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7 June 2023

Seeing spots thanks to Canadian wildfires

The eastern United States is being choked by thick wafts of Canadian wildfire smoke, and that has resulted in a rare opportunity to observe detailed features on the surface of the Sun.


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1 December 2022

Mask of the Sun, by John Dvorak

Inspired by How The Mountains Grew, I ordered the rest of John Dvorak’s oeuvre recently. I read the first over Thanksgiving break – a great nonfiction look at eclipses. The basics of lunar and solar eclipses are dispensed with early on, and Dvorak then spends his time on understanding of eclipses in antiquity, the gradual accumulation of insight into the causes and timing of eclipses – thus permitting them to …


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13 February 2017

Q&A, episode 2

A new edition of “science and nature question and answer.” This week: why Massanutten Mountain isn’t longer, and why you’re never going to walk on the Sun.


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