While studying the glass plate photographs, the Women Astronomical Computers made exciting discoveries that changed astronomy—like finding variable stars, examining the light of distant stars (stellar spectra), counting galaxies, and so much more.
Muriel Mussells Seyfert studied galaxies!
Williamina Fleming examined nebulae!
Helen Sawyer Hogg explored star clusters!
Henrietta Swan Leavitt measured variable stars!
Helen Sawyer Hogg image credit: Northern Electric Company Limited