American astrophysicist, cosmologist and author (1934–1996)
Carl Edward Sagan was an American astronomer and science communicator. His best known scientific contribution is his research on the possibility of extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by exposure to light. He assembled the first physical messages sent into space, the Pioneer plaque and the Voyager Golden Record, which were universal messages that could potentially be understood by any extraterrestrial intelligence that might find them. He argued in favor of the hypothesis, which has since been accepted, that the high surface temperatures of Venus are the result of the greenhouse effect.
Read more on
There are 19 more famous people who are born on the same day as Carl Sagan. We're showing the top 4 most popular below but you can see the rest here.
See more birthdays on 9th November