It's not every day an amateur rises to the level of history's greatest scientists, and it's even rarer for that amateur to be a non-European woman with just a high-school education. But that's the story of Hisako Koyama, a Japanese astronomer born in the early 20th century whose thousands of sunspot illustrations are being published right alongside greats like Galileo himself.
An Unlikely Life
What Are Sunspots?
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Written by Ashley Hamer October 20, 2017
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