Risultati letto da "Carl Sagan" in Tutte le categorie

This recording features the highlights of this historic 1995 event sponsored by the Temple of Understanding and includes a talk by the late cosmologist Carl Sagan. Visions for the 21st Century was a powerful forum for religious leaders, diplomats, nongovernmental organizations, and educators to present their visions for the next century.

Carl Edward Sagan (November 9, 1934 to December 20, 1996) was an American astronomer, planetary scientist, 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.

Carl Edward Sagan (November 9, 1934-December 20, 1996), born in Brooklyn, NY, was an American astronomer and astrophysicist. His best-known scientific contribution was his research on the possibility of extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by exposure to light. The following is a lecture Sagan gave in 1977 during which he discussed the place, scale and geometry of earth–the third planet from the Sun, formed 4.5 billion years ago–in our solar system.