It is the destiny of stars to collapse. — Neil deGrasse Tyson, Cosmos: A Spacetime Odyssey. Episode 8 “Sisters of the Sun.” Written by Brannon Braga. Directed by Ann Druyan & Steven Soter. April 27, 2014. Based on Cosmos: A Personal Voyage, Carl Sagan, Ann Druyan & Steven Soter. September 28, 1980 – December 21, 1980.