CARL SAGAN

Read more at BigThink.com: Follow Big Think here: YouTube: http://goo.gl/CPTsV5 Facebook: https://www.facebook.com/BigThinkdotcom Twitter: https://twitter.com/bigthink Michelle Thaller: So when I was growing up as a young girl—in Wisconsin actually—I was ten years old when Carl Sagan’s show Cosmos came on public broadcasting. And as a ten year old kind of living in rural Wisconsin I had never really met an astronomer. That’s not someone you routinely meet. Whenever people tell me, you know, you don’t really seem like an astronomer. The wonderful next thing to ask is, “How many astronomers do you know?” So my vision of what an astronomer was was this man on this television show, on public television, Carl Sagan. And the thing that Carl did better than anybody else I’d ever seen was this emotional connection to the science. He loved to tell stories. He would tell stories about the history but also it was from him that I learned where all of the atoms in my body come from. The fact that they were all formed in stars. And when Carl talks about that on the show I mean we sort of made a joke that there are these things called “Carl moments” where Carl sort of gazes dramatically off into space and the camera sort of close up, you know, close up on his face. And you can see him sort of emoting at how wonderful this is. And these days, you know, decades later those scenes seem a little bit silly and a little bit contrived. But as a child I was taken along for this incredible emotional journey. Carl was a real rock star. He had this charisma and people would just listen to what he was saying and they would love to follow along with his stories. And that became to me the image of what a scientist was, what an astronomer was, was somebody that could tell the stories of the universe. So I never ended up meeting Carl. I always wanted to. He unfortunately died very young, he died in his early 60s and I was a graduate student at the time. I always figured I would see him at some astronomy conference, I’d somehow, you know, wander past him at one of these scientific meetings and tell him how much that his show had meant to me. But I never got that chance. I never left though that idea, that what a scientist really does is tell stories. It’s about the narrative and it’s about the emotions. And Carl did that better than anyone I’ve ever seen.

Stunning visuals of space and our world over retro audio of Frank Drake and our founder Carl Sagan contemplating the search for intelligent life beyond our planet. Video by NASA / ESRSU / Seán Doran Ryan Chylinski Josh Spradling Videvo Kiril Dobrev GAIA Image ESA / Gaia / DPAC / Seán Doran Music by Jim McKeever

If life exists elsewhere in the Universe, would we be able to communicate with it? In this clip from the 1977 CHRISTMAS LECTURES "The planets", Carl Sagan demonstrates how we could send a signal that would make sense to intelligent beings that have evolved independently from us. Subscribe for regular science videos: http://bit.ly/RiSubscRibe This video is from our 2017 advent calendar. Watch the full series here: https://www.youtube.com/playlist?list=PLbnrZHfNEDZyvS5Cx-aRTX-Y8IBJCNmYm Or watch the full lecture here: http://www.rigb.org/christmas-lectures/watch/1977/the-planets/planetary-systems-beyond-our-sun?utm_source=youtube&utm_medium=social&utm_campaign=2017_advent&utm_content=description The Royal Institution 2017 advent calendar ‘Transmissions Through Time’ looks through the lens of CHRISTMAS LECTURES past to share the best demonstrations around the science of communication. From Attenborough and Sagan to Woollard and Fong, we revisit old favourites and find new gems to bring you a little gift of science every day in the lead up to Christmas. http://bit.ly/RiAdvent17 The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution and Tumblr: http://ri-science.tumblr.com/ Our editorial policy: http://www.rigb.org/home/editorial-policy Subscribe for the latest science videos: http://bit.ly/RiNewsletter

Carl Sagan, co-founder of The Planetary Society, and former Board of Advisors member, Frank Drake, discuss the possibility of other life in the universe. Learn more at https://planet.ly/GVX2N Also featured in this retro video is professor Paul Horowitz and director Steven Spielberg switching on META (Megachannel ExtraTerrestrial Assay) in Argentina. META II is still working and searching the cosmos for signs of extraterrestrial civilizations. "There is some chance that in a few decades we will get a signal from a spectacularly distant, spectacularly exotic civilization and everything on Earth will, as a consequence, change." -Carl Sagan Subscribe to our YouTube Channel: http://planet.ly/ytsubscribe Follow us! Facebook: http://www.facebook.com/planetarysociety Twitter: http://www.twitter.com/exploreplanets Instagram: http://www.instagram.com/planetarysociety On the web: http://www.planetary.org Join us: http://www.planetary.org/join Stay in touch with our monthly e-newsletter: http://www.planetary.org/connect About The Planetary Society: The Planetary Society has inspired millions of people to explore other worlds and seek other life. With the mission to empower the world's citizens to advance space science and exploration, its international membership makes the non-governmental Planetary Society the largest space interest group in the world. Carl Sagan, Bruce Murray and Louis Friedman founded the Planetary Society in 1980. Bill Nye, a longtime member of the Planetary Society's Board, serves as CEO.

Carl Sagan is an inspiration to us all. This week, they guys bring in Ingrid Ockert, a PhD student at Princeton University and an expert in the inner and outer machinations of science communication. Ingrid offers insight into the history of modern science education, while everyone waxes poetic about the man, the myth, the legend: Carl Sagan.   Places to Donate for Hurricane Irma American Red Cross: Usually the first group people think of when giving after a disaster. It says it is providing shelters for those displaced by Harvey, and it has thousands of volunteers on the ground in the state. Global Giving: A charity crowdfunding site that is attempting to raise $2 million to be used exclusively for local relief and recovery efforts. Airbnb: The hospitality company is working to coordinate people in need of a place to stay with people willing to offer a free room.   Links: Ad Astra T-Shirt Competition These Vibes Are Too Cosmic Carl Sagan & Bill Nye BEYOND THE HORIZON Red Rocket’s Glare Space and the American Imagination SaganSense on Tumblr Astronomy on Tap Last STEM Comic Standing Rick and Morty Halt and Catch Fire Mr. Robot The Simpsons and Their Mathematical Secrets   Minute Physics on YouTube Science Court on ABC Mythbusters on Discovery   Coming Soon to Space Cassini Final Orbit begins on September 9, ends on the 15th   Follow Ad Astra on Twitter at @AdAstra_Podcast, on Facebook, and subscribe to the mailing list for future updates and events! 0 Likes

Ann Druyan, writer, TV producer and widow of the celebrated astrophysicist Carl Sagan, shares responsibility for the art the spacecraft carry. Subscribe to TIME ►► http://po.st/SubscribeTIME Get closer to the world of entertainment and celebrity news as TIME gives you access and insight on the people who make what you watch, read and share. https://www.youtube.com/playlist?list=PL2EFFA5DB900C633F Money helps you learn how to spend and invest your money. Find advice and guidance you can count on from how to negotiate, how to save and everything in between. https://www.youtube.com/playlist?list=PLYOGLpQQfhNKdqS_Wccs94rMHiajrRr4W Find out more about the latest developments in science and technology as TIME’s access brings you to the ideas and people changing our world. https://www.youtube.com/playlist?list=PLYOGLpQQfhNIzsgcwqhT6ctKOfHfyuaL3 Let TIME show you everything you need to know about drones, autonomous cars, smart devices and the latest inventions which are shaping industries and our way of living https://www.youtube.com/playlist?list=PL2862F811BE8F5623 Stay up to date on breaking news from around the world through TIME’s trusted reporting, insight and access https://www.youtube.com/playlist?list=PLYOGLpQQfhNJeIsW3A2d5Bs22Wc3PHma6 CONNECT WITH TIME Web: http://time.com/ Twitter: https://twitter.com/TIME Facebook: https://www.facebook.com/time Google+: https://plus.google.com/+TIME/videos Instagram: https://www.instagram.com/time/?hl=en Magazine: http://time.com/magazine/ Newsletter: time.com/newsletter ABOUT TIME TIME brings unparalleled insight, access and authority to the news. A 24/7 news publication with nearly a century of experience, TIME’s coverage shapes how we understand our world. Subscribe for daily news, interviews, science, technology, politics, health, entertainment, and business updates, as well as exclusive videos from TIME’s Person of the Year, TIME 100 and more created by TIME’s acclaimed writers, producers and editors. 'A Kind Of Immortality': Carl Sagan's Widow Ann Druyan On Voyager 1's 40th Anniversary | TIME https://www.youtube.com/user/TimeMagazine

Carl Sagan's 2/9/1990 keynote speech before the 5th Annual Emerging Issues Forum at NCSU, broadcast live on North Carolina Public Television. Introduction by Roy Park of Park Communications. Recorded by Dr. Woody Sugg on a home VCR. Sagan spoke at the invitation of Jim Hunt, former NC Governor and the founder of the Institute for Emerging Issues. Published at https://www.youtube.com/watch?v=9Xz3ZjOSMRU

Fragment of an interview between Neil deGrasse Tyson and Seth MacFarlane: creator of Family Guy, Ted, and one of the producers of COSMOS: A PERSONAL VOYAGE Seth MacFarlane hace voz de Carl Sagan! STARTALK RADIO / PODCAST

Carl Sagan famously observed that we are all made of “star stuff.” But what does that mean? And how much of you is really made of dead stars? SciShow Space explains! Hosted by Reid Reimers ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Thanks Tank Tumblr: http://thankstank.tumblr.com Sources: http://www.physicscentral.com/explore/poster-stardust.cfm http://www.pbs.org/wgbh/nova/space/star-in-you.html http://quoteinvestigator.com/2013/06/22/starstuff/

What are scientists looking for when searching for alien life? A lot, it turns out: the search for extraterrestrials requires the help from astronomers, planetary scientists, chemists, computer scientists, and geneticists, just to name a few. But are we barking up the wrong carbon-based tree? Could alien life develop in ways we haven't dreamed of here on Earth? Hear Paul Davies, Sara Seager, Jack Szostak, and other experts give updates on the search for life outside our planet in "Alien Life: Will We Know It When We See It?" part of the Big Ideas series at the 2014 World Science Festival. Subscribe to our YouTube Channel for all the latest from WSF. Visit our Website: http://www.worldsciencefestival.com/ Like us on Facebook: https://www.facebook.com/worldsciencefestival Follow us on twitter: https://twitter.com/WorldSciFest Original Program Date: May 31, 2014 Host: John Hockenberry Participants: Jack W. Szostak, Paul Davies, Sara Seager, Dimitar Sasselov Carl Sagan and the future of finding alien life. 00:04 John Hockenberry's Introduction. 2:23 Participant Introductions. 5:45 How close are we to finding aliens? 6:48 How can you detect exoplanets that far away? 10:03 Kepler 186 system. 14:49 What are the tools you use to find Exoplanets? 18:00 Detecting beer drinkers at a football game. 24:18 What are we looking for on the microbial level? 30:05 What starts life on any planet? 36:04 Who will we call when aliens land on earth? 41:28 Processing in analog and digital with a two denominational cellular optometer. 49:30 The "awakening" of extraterrestrial life from the Vatican. 54:00 How we may have cheated to form life from other planets? 56:50 If we look for life where water is located are we ignoring life everywhere else? 1:04:54 Can you elaborate on the possibility life on ancient mars? 1:08:39 What are the new tools coming online today? 1:11:20 What is the direct imaging technique? 1:14:50 Testing the pedals on a space telescope. 1:21:00 The conditions on earth that we need for life elsewhere. 1:24:32 Communication basics from extremophiles. 1:28:05

Cosmos: A Personal Voyage Episode 13: Who Speaks For Earth You can select english subtitles. Puede seleccionar subtítulos en español. Serie de televisión series escrita por Carl Sagan, Ann Druyan, y Steven Soter, con Sagan como presentador. Productores ejecutivos: Adrian Malone, by David Kennard, Geoffrey Haines-Stiles y Gregory Andorfer. Dirigida por los productores, y David Oyster, Richard Wells, Tom Weidlinger, y otros. Content property of eOne.

Cosmos: A Personal Voyage Episode 12: Encyclopaedia Galactica You can select english subtitles. Puede seleccionar subtítulos en español. Serie de televisión series escrita por Carl Sagan, Ann Druyan, y Steven Soter, con Sagan como presentador. Productores ejecutivos: Adrian Malone, by David Kennard, Geoffrey Haines-Stiles y Gregory Andorfer. Dirigida por los productores, y David Oyster, Richard Wells, Tom Weidlinger, y otros. Content property of eOne.

Cosmos: A Personal Voyage Episode 11: The Persistence of Memory You can select english subtitles. Puede seleccionar subtítulos en español. Serie de televisión series escrita por Carl Sagan, Ann Druyan, y Steven Soter, con Sagan como presentador. Productores ejecutivos: Adrian Malone, by David Kennard, Geoffrey Haines-Stiles y Gregory Andorfer. Dirigida por los productores, y David Oyster, Richard Wells, Tom Weidlinger, y otros. Content property of eOne.

Cosmos: A Personal Voyage Episode 10: The Edge of Forever You can select english subtitles. Puede seleccionar subtítulos en español. Serie de televisión series escrita por Carl Sagan, Ann Druyan, y Steven Soter, con Sagan como presentador. Productores ejecutivos: Adrian Malone, by David Kennard, Geoffrey Haines-Stiles y Gregory Andorfer. Dirigida por los productores, y David Oyster, Richard Wells, Tom Weidlinger, y otros. Content property of eOne.

Cosmos: A Personal Voyage Episode 9: The Lives of the Stars You can select english subtitles. Puede seleccionar subtítulos en español. Serie de televisión series escrita por Carl Sagan, Ann Druyan, y Steven Soter, con Sagan como presentador. Productores ejecutivos: Adrian Malone, by David Kennard, Geoffrey Haines-Stiles y Gregory Andorfer. Dirigida por los productores, y David Oyster, Richard Wells, Tom Weidlinger, y otros. Content property of eOne.

Cosmos: A Personal Voyage Episode 8: Travels in Space and Time You can select english subtitles. Puede seleccionar subtítulos en español. Serie de televisión series escrita por Carl Sagan, Ann Druyan, y Steven Soter, con Sagan como presentador. Productores ejecutivos: Adrian Malone, by David Kennard, Geoffrey Haines-Stiles y Gregory Andorfer. Dirigida por los productores, y David Oyster, Richard Wells, Tom Weidlinger, y otros. Content property of eOne.

Cosmos: A Personal Voyage Episode 7: The Backbone of Night You can select english subtitles. Puede seleccionar subtítulos en español. Serie de televisión series escrita por Carl Sagan, Ann Druyan, y Steven Soter, con Sagan como presentador. Productores ejecutivos: Adrian Malone, by David Kennard, Geoffrey Haines-Stiles y Gregory Andorfer. Dirigida por los productores, y David Oyster, Richard Wells, Tom Weidlinger, y otros. Content property of eOne.

Can information theory help us understand if alien signals are "possibly intelligent"? How can we possibly say if something is intelligent if we don't understand it? This final chapter features Carl Sagan, Phillip Morrison, Kent Cullers (SETI - The search for extraterrestrial intelligence) Link to paper by Doyle: https://web.archive.org/web/20060903080122/http://faculty.vetmed.ucdavis.edu/faculty/bjmccowan/Pubs/McCowanetal.JCP.2002.pdf

Cosmos: A Personal Voyage Episode 6: Traveller's Tales You can select english subtitles. Puede seleccionar subtítulos en español. Serie de televisión series escrita por Carl Sagan, Ann Druyan, y Steven Soter, con Sagan como presentador. Productores ejecutivos: Adrian Malone, by David Kennard, Geoffrey Haines-Stiles y Gregory Andorfer. Dirigida por los productores, y David Oyster, Richard Wells, Tom Weidlinger, y otros. Content property of eOne.

Cosmos: A Personal Voyage Episode 5: Blues For A Red Planet You can select english subtitles. Puede seleccionar subtítulos en español. Serie de televisión series escrita por Carl Sagan, Ann Druyan, y Steven Soter, con Sagan como presentador. Productores ejecutivos: Adrian Malone, by David Kennard, Geoffrey Haines-Stiles y Gregory Andorfer. Dirigida por los productores, y David Oyster, Richard Wells, Tom Weidlinger, y otros. Content property of eOne.

Cosmos: A Personal Voyage Episode 4: Heaven And Hell You can select english subtitles. Puede seleccionar subtítulos en español. Serie de televisión series escrita por Carl Sagan, Ann Druyan, y Steven Soter, con Sagan como presentador. Productores ejecutivos: Adrian Malone, by David Kennard, Geoffrey Haines-Stiles y Gregory Andorfer. Dirigida por los productores, y David Oyster, Richard Wells, Tom Weidlinger, y otros. Content property of eOne.

Cosmos: A Personal Voyage Episode 3: Harmony Of The Worlds You can select english subtitles. Puede seleccionar subtítulos en español. Serie de televisión series escrita por Carl Sagan, Ann Druyan, y Steven Soter, con Sagan como presentador. Productores ejecutivos: Adrian Malone, by David Kennard, Geoffrey Haines-Stiles y Gregory Andorfer. Dirigida por los productores, y David Oyster, Richard Wells, Tom Weidlinger, y otros. Content property of eOne.

Cosmos: A Personal Voyage Episode 2: One Voice In The Cosmic Fugue You can select english subtitles. Puede seleccionar subtítulos en español. Serie de televisión series escrita por Carl Sagan, Ann Druyan, y Steven Soter, con Sagan como presentador. Productores ejecutivos: Adrian Malone, by David Kennard, Geoffrey Haines-Stiles y Gregory Andorfer. Dirigida por los productores, y David Oyster, Richard Wells, Tom Weidlinger, y otros. Content property of eOne.

Librarian of Congress James H. Billington was joined by Emmy Award-winner Seth MacFarlane and Ann Druyan, the longtime collaborator and widow of astrobiologist Carl Sagan, to celebrate the official opening of the Seth MacFarlane Collection of the Carl Sagan and Ann Druyan Archive to the public at the Library of Congress. For transcript, captions, and more information, visit http://www.loc.gov/today/cyberlc/feature_wdesc.php?rec=6242

This is a 30 segment from a 1983 Larry King Radio Show. I ask a question at 11 minutes and 30 seconds about one of Jupiter's Moons, Europa. Carl Sagan was an American astronomer, astrophysicist, cosmologist, author, science popularizer and science communicator in astronomy and natural sciences. His contributions were central to the discovery of the high surface temperatures of Venus. However, he is best known for his contributions to the scientific research of extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation. Sagan assembled the first physical messages that were sent into space: the Pioneer plaque and the Voyager Golden Record, universal messages that could potentially be understood by any extraterrestrial intelligence that might find them. He published more than 600 scientific papers and articles and was author, co-author or editor of more than 20 books. Sagan is known for many of his popular science books, such as The Dragons of Eden, Broca's Brain and Pale Blue Dot, and for the award-winning 1980 television series Cosmos: A Personal Voyage, which he narrated and co-wrote. The most widely watched series in the history of American public television, Cosmos has been seen by at least 500 million people across 60 different countries. The book Cosmos was published to accompany the series. He also wrote the science fiction novel Contact, the basis for a 1997 film of the same name. Sagan always advocated scientific skeptical inquiry and the scientific method, pioneered exobiology and promoted the Search for Extra-Terrestrial Intelligence (SETI). He spent most of his career as a professor of astronomy at Cornell University where he directed the Laboratory for Planetary Studies. Sagan and his works received numerous awards and honors, including the NASA Distinguished Public Service Medal, the National Academy of Sciences Public Welfare Medal, the Pulitzer Prize for General Non-Fiction for his book The Dragons of Eden, and, regarding Cosmos: A Personal Voyage, two Emmy Awards, the Peabody Award and the Hugo Award. He married three times and had five children. After suffering from myelodysplasia, Sagan died of pneumonia at the age of 62 on December 20, 1996.

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On Dec 7, 1995, on a JPL television program hosted by Richard Terrile, different commentators (including Carl Sagan) discuss Galileo during its orbit insertion at Jupiter.

On Dec 8, 1992, Carl Sagan discusses, on a JPL television program hosted by Richard Terrile, the second flyby of the Earth by the Galileo spacecraft. (Note: There are much higher quality videos of the Galileo movie of the Earth on youtube if you wish to see that.)

On June 6, 1990, in Washington, DC, Ed Stone and Carl Sagan discuss the findings of the Voyager Missions up to that point, including what later became the photo that made up the Pale Blue Dot.

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate We don't need another Carl Sagan. Because he lives on SUBSCRIBE, it's FREE! http://bit.ly/iotbs_sub ↓ More below ↓ Last week, I was lucky to attend the dedication of the Carl Sagan Collection at the Library of Congress, donated by Seth MacFarlane and Ann Druyan. It got me thinking . . Special thanks to Maria Popova for the Neil deGrasse Tyson audio: http://www.brainpickings.org/index.php/2013/11/13/neil-degrasse-tyson-and-ann-druyan-on-carl-sagan/ Library of Congress Sagan Papers: http://www.loc.gov/today/pr/2013/13-200.html Is Carl Sagan still relevant? Some thoughts: http://erinpodolak.com/2013/carl-sagan/ http://scienceline.org/2013/11/surely-there-must-be-others-carl-sagans-continued-relevance/ http://www.scilogs.com/blogozoic/why-we-should-keep-talking-about-carl-sagan/ Music: Podington Bear - Constellation Milky Way time lapse by Chuck Spangler: http://www.youtube.com/watch?v=Li-PsZ4ifTg ----------------- Have an idea for an episode or an amazing science question you want answered? Leave a comment below! Tweet at me: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios ----------- More videos: Why Do Things Sound Scary? http://www.youtube.com/watch?v=1JAym6-h4RE Want more? Monuments http://youtu.be/07K0vo-d1HA Want even MORE? Animal Superpowers http://www.youtube.com/watch?v=e69yaWDkVGs Why Music Moves Us http://www.youtube.com/watch?v=nT3O93-nxDc

Sagan's ability to convey his ideas allowed many people to understand the cosmos better—simultaneously emphasizing the value and worthiness of the human race, and the relative insignificance of the Earth in comparison to the Universe. More Carl Sagan: https://www.amazon.com/gp/search?ie=UTF8&tag=tra0c7-20&linkCode=ur2&linkId=9af4feeb12deb35a1542815d27b8b212&camp=1789&creative=9325&index=books&keywords=carl%20sagan He delivered the 1977 series of Royal Institution Christmas Lectures in London. He hosted and, with Ann Druyan, co-wrote and co-produced the highly popular thirteen-part Public Broadcasting Service (PBS) television series Cosmos: A Personal Voyage modeled on Jacob Bronowski's The Ascent of Man. Cosmos covered a wide range of scientific subjects including the origin of life and a perspective of our place in the Universe. The series was first broadcast by the PBS in 1980, winning an Emmy and a Peabody Award. It has been broadcast in more than 60 countries and seen by over 500 million people, making it the most widely watched PBS program in history. In addition, Time magazine ran a cover story about Sagan soon after the show broadcast, referring to him as "creator, chief writer and host-narrator of the new public television series Cosmos, [and] takes the controls of his fantasy spaceship". Sagan was a proponent of the search for extraterrestrial life. He urged the scientific community to listen with radio telescopes for signals from potential intelligent extraterrestrial life-forms. Sagan was so persuasive that by 1982 he was able to get a petition advocating SETI published in the journal Science and signed by 70 scientists including seven Nobel Prize winners. This was a tremendous increase in the respectability of this controversial field. Sagan also helped Frank Drake write the Arecibo message, a radio message beamed into space from the Arecibo radio telescope on November 16, 1974, aimed at informing potential extraterrestrials about Earth. Sagan was chief technology officer of the professional planetary research journal Icarus for twelve years. He co-founded The Planetary Society, the largest space-interest group in the world, with over 100,000 members in more than 149 countries, and was a member of the SETI Institute Board of Trustees. Sagan served as Chairman of the Division for Planetary Science of the American Astronomical Society, as President of the Planetology Section of the American Geophysical Union, and as Chairman of the Astronomy Section of the American Association for the Advancement of Science (AAAS). At the height of the Cold War, Sagan became involved in public awareness efforts for the effects of nuclear war when a mathematical climate model suggested that a substantial nuclear exchange could upset the delicate balance of life on Earth. He was one of five authors -- the "S" -- of the "TTAPS" report, as the research paper came to be known. He eventually co-authored the scientific paper hypothesizing a global nuclear winter following nuclear war. He also co-authored the book A Path Where No Man Thought: Nuclear Winter and the End of the Arms Race, a comprehensive examination of the phenomenon of nuclear winter. Sagan also wrote books to popularize science, such as Cosmos, which reflected and expanded upon some of the themes of A Personal Voyage and became the best-selling science book ever published in English; The Dragons of Eden: Speculations on the Evolution of Human Intelligence, which won a Pulitzer Prize; and Broca's Brain: Reflections on the Romance of Science. Sagan also wrote the best-selling science fiction novel Contact in 1985, based on a film treatment he wrote with his wife in 1979, but he did not live to see the book's 1997 motion picture adaptation, which starred Jodie Foster and won the 1998 Hugo Award for Best Dramatic Presentation. http://en.wikipedia.org/wiki/Carl_sagan

1977 Carl Sagan Christmas Lectures 2, about the outer solar system and life. In his second Christmas Lecture, Carl Sagan travels beyond Earth to explore the possibility of life in outer space. To find the answer, he looks back to the early stages of the development of our atmosphere. The hydrogen from this atmosphere has since escaped to space from Earth, but not from bigger planets like Jupiter. When the hydrogen-rich gases of the early Earth are mixed together and supplied with energy, the essential molecular building blocks of the proteins and nucleic acids are formed. As Sagan suggests, although this process no longer occurs on Earth, such organic chemistry should be occurring in the outer solar system on Jupiter, and Titan, Saturn's largest moon. The NASA twin spacecraft Voyager 1 and 2, launched a few months prior to these Lectures in 1977, were sent to space to explore this hypothesis.

In this classic interview from 1989, Dr. Carl Sagan, possibly the greatest populariser of fundamental science in modern history, has a conversation with CNN founder and environmental philanthropist Ted Turner. Ted Turner, like many others, acknowledged Carl Sagan's message about the importance of scientific reason about difficult matters such as environmental destruction and the threat of nuclear war early on and is responsible, in part, in drawing attention to the issue of environmental destruction to the masses. Turner undoubtedly monopolised the cable television sector making CNN one of the most powerful forms of mass media on earth. Fully aware that his financial gain was the direct result of the high technology of the time, Turner had responsibility to interview one of the leading scientists in the public sphere back then. Carl Sagan realised that part of the problem of nuclear war and global warming was the lack of understanding that the damage they can cause are both non-mutually exclusive to the countries that are responsible and the countries which are not responsible. In other words, greenhouse gases and radioactive smoke and dust do not recognise borders between countries, CO2 and radiation do not carry passports. Carl Sagan's work in the consequences of nuclear winter, which he derived mainly by Mie Scattering calculations of dust molecules in Martian dust storms, predicted to happen under certain conditions following a nuclear war was a key part in the development of the theory of Nuclear Winter which is one of the leading arguments against the perceived stability in the policy of Mutually Assured Destruction (M.A.D). Other scenarios, such as atmospheric irradiation, which would permanently destroy the Ozonosphere, and long term radioactive fallout are probably more likely, and more disastrous, scenarios making Carl's predictions somewhat optimistic. Moreover, human made climate change induced by CO2 and Methane emissions by intense industrial society has been predicted, using computer modelling at MIT and Caltech and others, showing a runaway global warming effect if Arctic and Antarctic permafrost is melted which would release huge amounts of trapped methane into the atmosphere warming the earth by perhaps 5 degrees or more at the equator, up to 12 degrees at the poles which would cause sea and ocean levels everywhere to rise as well as shifting of ocean and air currents causing unpredictable and much more energetic weather formations. Continuous Ozone depletion and water acidification and contamination are also serious issues as is the issue of fresh water shortage, which will tally the consequences of climate change to everyday human life. Carl Sagan shows us that our technological progress, unregulated, gives humanity the power to do utter devastation to the environment and to the human species itself. logically regulated however, Carl has taught us that the proper use of technology and the proper action to scientific knowledge can also do great good to the soften the impact of a technical civilization on the environment and towards helping the human community on a global scale. We should start taking Carl Sagan's and many others' example of thinking of the border divides between countries as imaginary to avoid global catastrophe by the threats of warfare by weapons of mass destruction and by global warming and environmental destruction. The silver lining of such actions would be, as Carl Sagan observes, the driving force that unites the human species to become a planetary civilization. Other Issues such as global poverty and the importance of science and mathematics education, fundamental science research and exploration are discussed and some more esoteric topics are discussed as well such as life on other planets, the philosophical implications of future technologies, the existence/non-existence of God(s) and the possible future of the human species.

Original Upload here: http://www.youtube.com/watch?v=-F-ZBn0Bf_4 Original Up-loaders YouTube channel: http://www.youtube.com/user/TheFifthGreatApe?feature=watch

Last interview with Charlie Rose

Carl Sagan swiftly and eloquently disproves creationism. An excerpt from chapter 3 of the Pale Blue Dot audiobook.

Join me on facebook http://www.facebook.com/pages/TheScienceFoundation/277697568961708 Stephen Hawking, Arthur C. Clarke and Carl Sagan (via satellite) discuss the Big Bang theory, God, our existence as well as the possibility of extraterrestrial life.

Check out http://www.CarlSaganVideos.com - a website that a friend of mine made that collects all Carl Sagan videos! In this video Carl Sagan, age 20, talks about mysterious planet Venus that was just discovered! See http://www.CarlSaganVideos.com for other cool Sagan videos!

To commemorate the 30 year anniversary of the release of Cosmos i've uploaded A 1966 Interview with Walter Cronkite and Carl Sagan about the existence of UFO's and the possibility of contacting alien civilizations.

Carl Sagan - Cosmos - Drake Equation

James Randi speaks video 8 James Randi talks about one of the most influential scientists of all time; Carl Sagan. Randi and Sagan were well acquainted, and Sagan once said of Randi: "We may not always agree with Randi, but we ignore him at our peril." Watch this video to see what Randi has to say about Sagan. If you are unfamiliar with Carl Sagan have a look at this video http://www.youtube.com/watch?v=myPSkL_S45E Recorded: 2/25/2009 Lighting, Camera and Editing by: Richard Montalvo ([email protected])

Milton Humason & Edwin Hubble's contributions to the theory of the "Big Bang." This clip comes from Carl Sagan's Cosmos episode 10, "The Edge of Forever."

Carl Sagan speaks about the search for extraterrestrial intelligence. Cosmos series, episode 12 "The Enciclopaedia Galactica"

Assorted TV news reports. Short features. Recorded in the hours immediately following his death on December 20th 1996.