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    Kênh 555win: · 2025-08-20 12:11:29

    555win cung cấp cho bạn một cách thuận tiện, an toàn và đáng tin cậy [kqxs]

    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.

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

    Nov 9, 2023 · Carl Sagan was a multifaceted American scientist known for his work in astronomy, cosmology, astrophysics, astrobiology, and for his immense contribution to the popularization of science.

    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 co-wrote and hosted...

    Jun 19, 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.

    Items from Carl Sagan's papers illustrate the many facets of his career. More broadly, these items speak to the range of roles scientists play in society. Most Americans know Carl Sagan best as a public figure and science communicator. For Sagan …

    He was a consultant and adviser to NASA beginning in the 1950s, he briefed the Apollo astronauts before their flights to the Moon, and was an experimenter on the Mariner, Viking, Voyager, and Galileo expeditions to the planets.

    Mar 16, 2025 · Carl Sagan was a prominent American astronomer, widely recognized for his contributions to planetary science and his efforts to engage the public in the wonders of the universe.

    A Cornell University faculty member, Sagan wrote about the existential threat of a nuclear winter while also promoting the possible habitability of other worlds in our solar system; most notably Mars, Venus, and Europa.

    Nov 8, 2024 · What most people don't know about Sagan, and what has been somewhat obscured by his fame, is the far-reaching impact of his science, which resonates to this day.

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