Carl Sagan biography

Profile

Astronomer Carl Sagan was born on November 9, 1934, in Brooklyn, New York. He graduated from the University of Chicago and studied planets and extraterrestrial intelligence. He was named director of Cornell’s Laboratory for Planetary Studies in 1968. Being against nuclear weapons, he introduced the idea of “nuclear winter” in 1983. He wrote several novels and the TV series Cosmos before his death in 1996.