Columbia College Chicago physics professor Pangratios Papacosta, Ph.D., shares the story of Henrietta Leavitt, who discovered a way of measuring long distances to stars and galaxies, "the key to understanding the universe." Commentary/contributors include: Nancy R. Evans, astrophysicist (retired) Harvard/Smithsonian Center for Astrophysics; Owen Gingerich, professor emeritus, Astronomy and History of Science, Harvard University; Bruce Richards, professor emeritus, physics department, Oberlin College; and Marvin Bolt, vice president for collections, Adler Planetarium.

Loading more stuff…

Hmm…it looks like things are taking a while to load. Try again?

Loading videos…