Learn about Carl Sagan

Carl Sagan directs a variety of research programs concentrating on theoretical, laboratory and spacecraft studies of solid, liquid, and gas-phase organic molecules in the atmospheres and on the surfaces of planets, satellites and comets in the solar system, and in the interstellar medium. He aims to understand the origin of life on Earth and the possibility of the present or past existence of life elsewhere in the solar system (extraterrestrial intelligence). Sagan has been associated with most of the space missions which explored Mars and the outer planets.

Sagan has been a leading figure in the search for extraterrestrial intelligence since the inception of the U.S. program. His group cooperates with radio astronomers in the study of radio signals possibly emitted by civilizations elsewhere in our galaxy. He was a famous author known for his book Contact which later became a movie.