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Carl Sagan print that pageTimeline of Carl Sagan


Voyage , which he narrated and co-wrote. [ 2 ] A book to accompany the program was also published. Sagan also wrote the novel Contact , the basis for the 1997 film of the same name . Contents 1 Early life 1.1 1939 World's Fair 1.2 World War II 1.3 Inquisitiveness about nature

Carl Sagan Medal print that page

The Carl Sagan Medal for Excellence in Public Communication in Planetary Science was established by the Division for Planetary Sciences of the American Astronomical Society to recognize and honor outstanding communication by an active planetary scientist to the general public. [ 1 ] It

wikipedia.org | 2011/5/26 1:02:54

Extraterrestrial life print that page


laws of the observable Universe . According to this argument, supported by scientists such as Carl Sagan and Stephen Hawking , it would be improbable for life not to exist somewhere other than Earth . [ 1 ] [ 2 ] This argument is embodied in the Copernican principle , which states that

Carolyn Porco print that page


one of '15 People the Next President Should Listen To.' [ 11 ] And in 2010 she was awarded the Carl Sagan Medal , presented by the American Astronomical Society . [ 12 ] Contents 1 Education 2 Career 2.1 Voyager 2.2 Cassini–Huygens 2.3 New Horizons 2.4 University positions

Paul R. Ehrlich print that page


Ehrlich was born in Philadelphia, Pennsylvania . His father was a shirt salesman, his mother a Greek and Latin scholar. [ 5 ] He earned a bachelors degree in zoology from the University of Pennsylvania during 1953, an M.A. at the University of Kansas during 1955, and a Ph.D. during 1957

Immanuel Velikovsky print that page


His books use comparative mythology and ancient literary sources (including the Bible ) to argue that Earth has suffered catastrophic close-contacts with other planets (principally Venus and Mars ) in ancient times. In positioning Velikovsky among catastrophists including Hans Bellamy

Worlds in Collision print that page


The book was first published on April 3, 1950, by Macmillan Publishers . [ 1 ] Macmillan's interest in publishing it was encouraged by the knowledge that Velikovsky had obtained a promise from Gordon Atwater, Director of the Hayden Planetarium, for a sky show based on the book when it was

Kardashev scale print that page

The Kardashev scale is a method of measuring an advanced civilization's level of technological advancement. The scale is only theoretical and in terms of an actual civilization highly speculative; however, it puts energy consumption of an entire civilization in a cosmic perspective. It

wikipedia.org | 2011/8/26 16:29:58

SETI print that page


There are great challenges in searching across the cosmos for a first transmission that could be characterized as intelligent, since its direction, spectrum and method of communication are all unknown beforehand. SETI projects necessarily make assumptions to narrow the search, the foremost

Pioneer plaque print that page


Jet Propulsion Laboratory in Pasadena, California during the Mariner 9 mission. He approached Carl Sagan , who had lectured about communication with extraterrestrial intelligences at a conference in Crimea . Sagan was enthusiastic about the idea of sending a message with the Pioneer