Public figure

Cecilia Payne-Gaposchkin

Stellar astrophysicist

Cecilia Payne-Gaposchkin studied stellar spectra and the composition of stars. Her 1925 doctoral thesis identified hydrogen and helium as their principal components.

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Wikipedia biography: Cecilia Payne-Gaposchkin

Photo creditSmithsonian Institution/Science Service, restored by Adam CuerdenPublic domain