FOX - Cosmos A Spacetime Odyssey (2014) Part 8 Sisters of the Sun

More than three decades after the debut of Carl Sagan's ground-breaking and iconic series, “Cosmos: A Personal Voyage,” it's time once again to set sail for the stars.

Part 8: Sisters of the Sun

Explores the violent cosmic phenomenon of supernovas, which on average occur once per galaxy per century or one billion times per year in the observable universe.

Tyson goes on to describe 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. This team included Annie Jump Cannon, who developed the stellar classification system, and Henrietta Swan Leavitt, who has discovered the means to measure the distance from a star to the earth by its spectra, later used to identify other galaxies in the universe.

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