Carl Sagan on radio astronomy & the Drake Equation XXXSDESDEXXX 9:49 16 years ago 16 608 Скачать Далее
Astronomer Carl Sagan talks about Radio waves #astrophysics The Science Fact 0:35 1 year ago 9 675 128 Скачать Далее
The Search for Extraterrestrial Intelligence by Carl Sagan FreeScienceLectures 9:01 17 years ago 14 674 Скачать Далее
Carl Sagan found 8 new WOW signals! Why has NASA never followed up? The Angry Astronaut 22:18 3 weeks ago 33 741 Скачать Далее
Carl Sagan on Search for Extraterrestrial Intelligence -1979 undercoverkptic 8:51 17 years ago 38 939 Скачать Далее
Alien Contact,...Are we alone?,.....VLA Radio Telescope, New Mexico! IntoWisOutdoors 5:13 8 years ago 2 010 Скачать Далее
Carl Sagan Christmas Lectures 6 - Planetary Systems Beyond Our Sun mrnobodysprincess 1:00:00 7 years ago 57 375 Скачать Далее
Carl Sagan on Contacting Extraterrestrials with Radio Signals in Outer Space - FindingUFO FindingUFO 8:36 7 years ago 7 672 Скачать Далее
How Would We Communicate with Alien Life? - with Carl Sagan The Royal Institution 8:17 6 years ago 276 386 Скачать Далее
Astronomers communicate with Aliens using Radio Telescopes & Carl Sagan Validation & et AL. thornews 12:02 7 years ago 2 637 Скачать Далее
Carl Sagan - Cosmos - A Journey into the Cosmos carlsagandotcom 2:29 15 years ago 70 520 Скачать Далее
Carl Sagan Christmas Lecture 1 - The Earth as a Planet carlsagandotcom 59:49 2 years ago 193 175 Скачать Далее
09 Darkness Carl Sagan on the search for extraterrestrial intelligence Carl Sagan Tribute Series 2 2 Celebration Of Reason 10:17 11 years ago 33 367 Скачать Далее