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The knowledge of Venus's atmosphere was still inexact in 1961, when Sagan made his original proposal. Thirty-three years after his original proposal, in his 1994 book Pale Blue Dot, Sagan conceded his original proposal for terraforming would not work because the atmosphere of Venus is far denser than was known in 1961: [7]
On the pro-terraforming side of the argument, there are those like Robert Zubrin, Martyn J. Fogg, Richard L. S. Taylor, and the late Carl Sagan who believe that it is humanity's moral obligation to make other worlds suitable for human life, as a continuation of the history of life-transforming the environments around it on Earth.
Sagan in Rahway High School's 1951 yearbook. Carl Edward Sagan was born on November 9, 1934, in the Bensonhurst neighborhood of New York City's Brooklyn borough. [9] [10] His mother, Rachel Molly Gruber (1906–1982), was a housewife from New York City; his father, Samuel Sagan (1905–1979), was a Ukrainian-born garment worker who had emigrated from Kamianets-Podilskyi (then in the Russian ...
First formally proposed by astrophysicist Carl Sagan, the terraforming of Venus has since been discussed through methods such as organic molecule-induced carbon conversion, sun reflection, increasing planetary spin, and various chemical means. [5]
Astronomer and author Carl Sagan criticizes President Ronald Reagan’s “Star Wars” defense program for outer space as unworkable and too expensive and endorses Democrat Walter Mondale for ...
Sagan argues that in order to save the human race, space colonization and terraforming should be utilized. Later in the book, Sagan's wife, Ann Druyan , challenges readers to pick one of the other planetary dots photographed and featured in the book, and imagine that there are inhabitants on that world who believe that the universe was created ...
The Planetary Society was founded in 1980 by Carl Sagan, Bruce Murray, and Louis Friedman as a champion of public support of space exploration and the search for extraterrestrial life. Until the death of Carl Sagan in 1996, the Society was led by Sagan, who used his celebrity and political clout to influence the political climate of the time ...
The concept of modifying planets to be more Earth-like is known as terraforming. The concept of terraforming developed from both science fiction and actual science. In science, Carl Sagan, an astronomer, proposed the terraforming of Venus in 1961, which is considered one of the first accounts of the concept. [5]