 This episode provides an overview of the composition of stars, and their fate in billions of years.Tyson describes how early man would identify stars via the use of constellations that tied in with various myths and beliefs, such as the Pleiades.Tyson describes the work of Edward Charles Pickering to capture the spectra of multiple stars simultaneously, and the work of the Harvard Computers or "Pickering's Harem", a team of women researchers under Pickering's mentorship, to catalog the spectra.