Robert McNees
A
Astrophysicist Joan Feynman was born #OTD in 1927.

She explained the origin of auroras, discovered that coronal mass ejections could be identified by the amount of helium in the solar wind, and elucidated the structure of Earth's magnetosphere.

Image: Charles Hirshberg
09:16 AM - Mar 31, 2023
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Katie E
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In response to Robert McNees.
And she fenced!
09:23 AM - Mar 31, 2023
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