is Saturn" (TED2007) "Could a Saturn moon harbor life?" (TED2009) Podcast on the Cassini mission by Carolyn Porco Sasha Sagan interviews Carolyn Porco American atheists American women astronomers 1953 births Living people Women planetary scientists Voyager program California Institute of Technology alumni American people of Italian descent University of Arizona faculty Scientists from New York City 20th-century American astronomers 21st-century American astronomers 20th-century American women scientists 21st-century American women scientists Cardinal Spellman High School (New York City) alumni Planetary scientists American women academics