vicgrinberg, (edited )
@vicgrinberg@mastodon.social avatar

It's only since Cecilia Payne's PhD thesis in 1925, that we know what the stars - and our Sun - are made of: mostly hydrogen.

Her thesis was described as ""the most brilliant PhD thesis ever written in astronomy" and it extremely readable: https://ui.adsabs.harvard.edu/abs/1925PhDT.........1P/abstract

Yet It took until 1956, 10 years before her retirement, for her to become full professor - because women were barred from becoming full professors at Harvard.

(Posted because she was born ).

MishaVanMollusq,
@MishaVanMollusq@sfba.social avatar

@vicgrinberg second toot I’ve seen about her today !

vicgrinberg,
@vicgrinberg@mastodon.social avatar

@MishaVanMollusq yay :) And there should be even more - she revolutionised what we know about the universe! Before her, we thought that Earth and the Sun have the same composition!

patcanfield,

@vicgrinberg It is sad SO Many countries are Suffering because the lack of well-rounded, educated input to their discussions have caused Stupidity to reign

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