Carl Edward Sagan (/ ˈseɪɡən /; SAY-gən; November 9, 1934 – December 20, 1996) was an American astronomer, planetary scientist and science communicator.

Apr 11, 2025 · Carl Sagan, American astronomer and science writer. A popular and influential figure in the United States, he was controversial in scientific, political, and religious circles for his views on extraterrestrial intelligence.

Nov 4, 2024 · Carl Sagan (1934 – 1996) played a leading role in the American space program from its very beginning. He was a consultant and adviser to NASA beginning in the 1950s — he briefed the Apollo astronauts before their flights to the Moon.

Apr 2, 2014 · Best Known For: Carl Sagan was one of the most well-known scientists of the 1970s and 1980s. He studied extraterrestrial intelligence, advocated for nuclear disarmament and...

Carl Sagan lobbied NASA for ten years to command the Voyager 1 spacecraft to turn its camera homeward to take one last picture from beyond the orbits of Neptune and Pluto. On Valentine’s Day in 1990 it did so, revealing our world to appear as but a single pixel from that distance.

The Carl Sagan Institute was founded in 2015 at Cornell University to find life in the universe and explore other worlds – how they form, evolve and if they could harbor life both inside and outside of our own Solar System. The toolkit to find life in the universe; Meet the groundbreaking interdisciplinary team

Nov 8, 2024 · With unusual breadth in astronomy, physics, chemistry and biology, Sagan pushed forward the nascent discipline of astrobiology — the study of life in the universe.

Most Americans know Carl Sagan best as a public figure and science communicator. For Sagan an interest in science communication came early. Even as a high school student he waxed philosophical on the connections between the Astronomer and the Poet.

Carl Sagan, also known as “the astronomer of the people”, was an American astronomer, astrophysicist, author and researcher. He made crucial contributions in popularizing astronomy to the public. He authored over 600 scientific papers and wrote several books about astronomy and natural sciences.

Carl Sagan was the world’s best known scientist in the late 20th century, serving as our guide to the planets during the golden age of solar system exploration. He was both a visionary and a committed defender of rational scientific thinking.