NOVA | Finding Life Beyond Earth PBS Airdate: October 19, 2011 NARRATOR: Is Earth the only planet of its kind in the universe, or is there somewhere else like this out there? Is there life beyond Earth? The search for alien life is one of humankind's greatest technological challenges. And scientists are seeking new ways to find answers. JIM GREEN (Director, Planetary Science Division, NASA): We're pushing the boundary of information of where life can exist, past the earth and out into the solar system. NARRATOR: Leading the search are sophisticated telescopes that scan the sky and an armada of robotic probes exploring the outer reaches of our solar system, all revealing the planets, moons, asteroids and comets like never before. AMY MAINZER: We can go places and see things that there's no other way we could've ever seen. JIM GREEN: The pace of discovery, just in the last couple of years, is just mindboggling. NARRATOR: Finding Life Beyond Earth, up now on NOVA. NARRATOR: But what exactly is this liquid?
Astrobiology: Life in the Universe How Did Life Become Complex? A species of yeast (Saccharomyces cerevisiae) seen in a scanning electrograph image. Credit: NASASource: [astrobio.net The evolution of multicellular life on Earth happened with a number of key transitions from simple organisms to complex. Could the same transitions happen on other worlds? Frank Rosenzweig, an evolutionary geneticist at the University of Montana, is looking into such questions over the next five years with funding from the NASA Astrobiology Institute. Not every planet in or near a habitable zone is habitable. Xenobiology © 1981 Robert A. Freitas Jr. All Rights Reserved. Robert A. Freitas Jr., “Xenobiology,” Analog Science Fiction/Science Fact, Vol. 101, 30 March 1981, pp 30-41 URL: This paper contains material originally drawn from the book Xenology (1979) by Robert A. Xenology is the study of all aspects of life, intelligence, and civilization indigenous to environments other than Earth. Xenobiology – the study of alien lifeforms – is a major subdiscipline within the xenological sciences. Biological Chauvinisms The term “chauvinism” derives from the name of Nicolas Chauvin, a highly jingoistic soldier born at Rochefort in the late 18th century. For instance, there used to be the notion that oxygen (O2) is absolutely required for higher life. Another early biological chauvinism was the insistence that life is an especially fragile phenomena limited to a very narrow range of environments. Carbon/Water Lifeforms Dr. In December 1979 Dr. Biology without Water
Interactive 3D model of Solar System Planets and Night Sky The Scale of the Universe Light travels at 300,000 kilometres per second (186,000 miles per second). In one second, a beam of light can travel SEVEN TIMES around the Earth. This table shows a number of distances to various objects expressed in terms of how long a beam of light takes to travel that distance. Time scales longer than the age of the Universe are possible because of the expansion of the Universe. The scale of the Universe and our place in it are well summarised in Monty Python's Galaxy Song. © 1997, 2013 KryssTal You can try out our Testking 220-701 certification material and latest 642-427 dumps to get high flying success in testking 642-262 certification exams, beside testking 77-605 exam product for certifications like testking 70-541 are also very useful tools. In astronomy times are confusing because of the large numbers of zeros in the figures. This link will open in a separate window The Official Superstring Web Site An excellent site containing information about superstrings and cosmology.
Why the USA and NASA need astrobiology I am an astrobiologist, for 50 years an astronomer, and before that a physicist. With my colleague and friend Roger Angel, we started the process of learning how to detect Earth-like planets in 1985. I am a co-author of the NASA booklet The Terrestrial Planet Finder. I have served with scientific and technical teams to develop that mission since 1995. I have been a professor of astronomy at U. As a professional who has moved my research area around many times, I have both been depressed and concerned about the difficulty my colleagues have in pulling together material that crosses many fields. There are many complex issues that face our country and our world today. The first activity of my Astrobiology team was to hold a graduate student conference. Last year the NASA Astrobiology Institute held an internal meeting to explore the range of research of Institute members. Neville J. Professor of Astronomy Director LAPLACE
Seth MacFarlane Champions New ‘Cosmos’ Series on Fox Photo WASHINGTON — When some of the nation’s brightest minds gathered here at the Library of Congress to celebrate Carl Sagan, the pioneering astrobiologist, the first guest speaker was someone with no professional background in science. It was Seth MacFarlane, the multitasking comedian and creator of “Family Guy,” who gave an impassioned speech to the crowd of Ph.D.s and NASA advisers on how scientific achievement had “ceased in many parts of this country to be a source of pride.” “Long accepted scientific truths have been brought into question largely — who are we kidding? Now he is taking another step beyond his reputation as a purveyor of coarse humor, as an executive producer and prime mover of a resurrected version of “Cosmos,” the immensely popular documentary series that Sagan helped create and hosted for PBS in 1980. Mr. “ ‘Cosmos’ addressed questions that every human being has, whether they think about them on a mathematical level or just as a layman,” Mr. Yet for Mr. Ms. Ms.
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