Carl Sagan 1966 CBS Interview on the Possibilities of Extraterrestrial Life

This is a CBS interview with Carl Sagan produced in 1966. The astronomer became a popular figure with the PBS program Cosmos and his books. Sagan was in many ways ahead of his time, figuring out the nature of Venus' atmosphere and believing extraterrestrial life was a possibility. To date there are several Earth like planets that have been discovered outside the Solar System. Humanity has not been able to reach these planets for direct observation, but it could be teeming with life. There opens  a new opportunity for expansion in biology. Astrobiology will become more important as humanity explores and finds more organisms in space.