The woman who measured the universe 🌌⁣ ⁣ Henrietta Swan Leavitt's work measuring the luminosity of stars led to profound shifts in our understanding of the Universe.⁣ ⁣ Made by BBC Ideas in partnership with theroyalsociety⁣ ⁣ #BBCIdeas #Universe #Space #Stars #Science ⁣ ⁣ BBC Ideas: Short films for curious minds.