In 1912, Henrietta Swan Leavitt discovered the period-luminosity relation for Cepheid variables, a breakthrough in the field of astronomy. Her work enabled astronomers to measure distances to far-off galaxies, fundamentally changing our understanding of the universe's scale. Leavitt's contributions were pivotal in the development of modern astrophysics and helped establish her as a key figure in the field.

Henrietta Leavitt's discovery of Cepheid variables in 1912 enabled distance measurements to galaxies, expanding literary horizons on the scale of the observable universe. Poets like John Ashbery and Anne Carson began to explore themes of infinity and the cosmos in their poetry.