Star Women Unisex T-ShirtWe are thrilled to have one of the first and most popular t shirt designs from our BOOTHtique available in our online shop! Designed by spaceflight photojournalist Pacalin, the t shirt features three historic astronomers who changed our understanding of the stars. Henrietta Swan Leavitt developed a system for measuring galactic distances by tracking the luminosity of stars. Annie Jump Cannon classified hundreds of thousands of stars, devising a system
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