He approached Carl Sagan, who had lectured about communication with extraterrestrial intelligences at a conference in Crimea.

In his later years as a writer and scientist, Sagan would often draw on his childhood memories to illustrate scientific points, as he did in his book, Shadows of Forgotten Ancestors.

The particles were never observed to rise above 6 km and when combined with scavenging by clouds gave the smoke a short residency time in the atmosphere and localized its effects ; Professor Carl Sagan of the Turco, Toon, Ackerman, Pollack, Sagan ( TTAPS ) study hypothesized in January 1991 that enough smoke from the fires " might get so high as to disrupt agriculture in much of South Asia ...." Sagan later conceded in his book The Demon-Haunted World that this prediction did not turn out to be correct: " it was pitch black at noon and temperatures dropped 4 °– 6 ° C over the Persian Gulf, but not much smoke reached stratospheric altitudes and Asia was spared.

According to Margulis and Dorion Sagan, " Life did not take over the globe by combat, but by networking.

According to Margulis and Dorion Sagan, " Life did not take over the globe by combat, but by networking " ( i. e., by cooperation ).

The Introduction was removed after the first edition, as it was copyrighted by Sagan, rather than by Hawking or the publisher, and the publisher did not have the right to reprint it in perpetuity.

In 1978, the NASA SETI program was heavily criticized by Senator William Proxmire, and funding for SETI research was removed from the NASA budget by Congress in 1981, however, funding was restored in 1982, after Carl Sagan talked with Proxmire and convinced him of the program's value.

model, in which a far-sighted U. S. leader provides the funding and mobilizes national public opinion around the idea ; the Sagan model, in which international co-operation is the driving force ; and the Gingrich approach, which emphasizes incentives and even prizes for private sector actors who take on research and development tasks.

Other research, pursued within the Carl Sagan Center for the Study of Life in the Universe, includes the discovery of extrasolar planets, potentials for life on Mars and other bodies within the Solar System, and the habitability of the galaxy ( including the study of extremophiles ).

Among the members of the research team were astronomer Gerard Kuiper and his doctoral student Carl Sagan, who was responsible for the mathematical projection of the expansion of a dust cloud in space around the Moon, an essential element in determining its visibility from Earth.

In the application, Sagan gave details of the project research, which Davidson felt constituted a violation of national security.

Pascal Lee studied astronomy and space sciences at Cornell, and worked as a research and teaching assistant for his thesis adviser Joseph Veverka, and the late Carl Sagan.

Sagan recalled taking his first trips to the public library alone, at the age of five, when his mother got him a library card.

From 1960 to 1962 Sagan was a Miller Fellow at the University of California, Berkeley.

From 1972 to 1981, Sagan was the Associate Director of the Center for Radio Physics and Space Research at Cornell.

Sagan often challenged the decisions to fund the Space Shuttle and Space Station at the expense of further robotic missions.

Sagan taught a course on critical thinking at Cornell University until he died in 1996 from pneumonia, a few months after finding that he was in remission of myelodysplastic syndrome.

Carl Sagan suggested that there are three claims in the field of parapsychology which have at least some experimental support and " deserve serious study ", as they " might be true ":

In the SETI context, the name has been used for radio telescopes in fiction ( Arthur C. Clarke, " Imperial Earth "; Carl Sagan, " Contact "), was the name initially used for the NASA study ultimately known as " Cyclops ," and is the name given to an omnidirectional radio telescope design being developed at the Ohio State University.

* Carl Sagan writes at length about Teller's career in chapter 16 of his book The Demon-Haunted World: Science as a Candle in the Dark ( Headline, 1996 ), p. 268-274.

** 2006-12-30 — Martian Analemma at Sagan Memorial Station ( simulated )

During his tenure, Gold hired famed astronomers Carl Sagan and Frank Drake, helped establish the world's largest radio telescope at the Arecibo Observatory in Puerto Rico and the Cornell-Sydney University Astronomy Center with Harry Messel.

Carl Sagan, hired by Gold after Sagan was denied tenure at Harvard University in 1968.

A longtime friend and colleague of Stephen Hawking and Carl Sagan, he was the Feynman Professor of Theoretical Physics at the California Institute of Technology ( Caltech ) until 2009 and one of the world ’ s leading experts on the astrophysical implications of Einstein ’ s general theory of relativity.

The book is an expansion of the Jacob Bronowski Memorial Lecture in Natural Philosophy which Sagan gave at the University of Toronto.

Kathryn M. Drennan is an American writer, having worked for Carl Sagan on the mini-series Cosmos: A Personal Voyage in the early 1980s and for Michael Piller, producer at the time for Star Trek: The Next Generation, in the early 1990s.

Johnny was killed off in 1990, sacrificing himself to save mutants from extermination at the hands of Kreelman's illegitimate son, Lord Sagan.

Sagan is now selling some of the collection at Wolfgang's Vault referring to Graham's childhood nickname.

Sagan taught screenwriting at Cornell University in the spring of 2007.

Proceedings of the 37 < sup > th </ sup > International Astronautical Congress, Innsbruck, Austria, 4-11 October 1986, IAF-86-360 </ ref > The ISU founders are Peter Diamandis, a medical doctor with a Master's in aerospace engineering from MIT ; Todd Hawley, a graduate from Space Policy Institute at George Washington University, and Robert D. Richards, an engineer and physicist, and former assistant of the well-known astrophysicist Carl Sagan.

* Margulis, Lynn, and Dorion Sagan, 1986, Origins of Sex: Three Billion Years of Genetic Recombination, Yale University Press, ISBN 0-300-03340-0

The contents of the record were selected for NASA by a committee chaired by Carl Sagan of Cornell University.

in Geological Sciences from Cornell University in 1978 and his Ph. D. in Astronomy ( Planetary Studies ) from the same institution in 1981, where he worked closely with Carl Sagan.

Bush ( former Trustee of the University ), Ken Burns, Condoleezza Rice, Pervez Musharaff, Colin Powell, Carl Sagan, Desmond Tutu, Bob Dole, Margaret Thatcher, John Major, Benjamin Netanyahu, Thomas Friedman, Charles Krauthammer, José María Aznar, Tom Brokaw, John Edwards, Gerhard Schröder, Doris Kearns Goodwin, David Kay, Queen Noor, John Glenn, Lord George Robertson, Benazir Bhutto, Lech Wałęsa, Madeleine Albright, Thomas Kean, Brit Hume, Barbara Bush, Rudolph Giuliani, Michael Beschloss, Shimon Peres, Jimmy Carter, Gerald Ford, John Updike, Lawrence Eagleburger, Mario Cuomo, William Bennett, Juan Williams, Pierre Salinger, Sam Nunn, Vicente Fox, Dan Rather, Dominique de Villepin, Bill Clinton ( organized by the San Antonio Business Council ) and John Cleese.

) Sagan went to The Mirman School as a child and received his bachelor's degree from the University of California, Los Angeles.

* Loren Kruger, Lights and Shadows: The Autobiography of Leontine Sagan ( Johannesburg, South Africa: Witwatersand University Press, 1996 )

Astronomer Carl Sagan, who was a faculty member at Cornell University, tried to recruit Tyson to Cornell for undergraduate studies.

The Sagan Planet Walk, named after famed Cornell University astronomer Carl Sagan, begins in the Commons and stretches 3 / 4 mile from the Commons through downtown Ithaca to the Sciencenter.

The existence of Project A119 remained largely secret until the mid-1990s, when writer Keay Davidson discovered the story while researching the life of Carl Sagan for a biography.

She co-authored the book Murmurs of Earth with her ex-husband, astronomer Carl Sagan, whom she married on April 6, 1968 ; the marriage lasted until their divorce in 1981.

The late Carl Sagan served as editor of the journal from 1968 to 1979.