21. Exobiology: Speculations On Alien Life And Intelligence An essay on the existence of alien life forms and galactic civilizations. http://jp.senescence.info/thoughts/exobiology.html

Home Thoughts Exobiology Of all mysteries of the universe, the possibility of meeting other intelligent species must be the most provocative. It would be the greatest achievement in the History of humankind to contact other intelligent species. Unfortunately, as I debate below, I don't know whether we would survive. Galactic Civilizations Geological time is in the order of millions of years. Life, which depends on the chemistry and conditions of a planet, also follows such large cosmological scales. Thus other intelligent species in the universe are not likely to be in the Bronze Age or in any age that happened to us in the last thousands of years. Possibly, if they are less intelligent than us, they would still be animals. But if we are to face a more advanced civilization they will be millions of years ahead of us because, by chance, they originated millions of years before. At a cosmological time scale, energy manipulation is a good method to classify a civilization. Nikolai Kardashev and Freeman Dyson developed the following classification for alien civilizations: Type Level of Energy Control I Absolute control over a planet's energy.

22. Titan Exobiology Page Titan as an exobiology Laboratory. Basic Properties of Titan (Ref Saturn by Arizona Press) Surface radius = 2575 km Mass = 0.022 Earth mass http://www.markelowitz.com/titan.htm

Titan as an Exobiology Laboratory Basic Properties of Titan (Ref: "Saturn" by Arizona Press) Surface radius = 2575 km Mass = 0.022 Earth mass Surface gravity = 135 cm/s Mean density = 1.881 g/cm Rock/Ice ratio = 52:48 (by mass) Distance from Saturn = 20 Saturn radii Distance from Sun = 9.546 AU Orbital period = 15.95 day Heliocentric period = 30 yr Surface temperature = 92 K Effective temperature = 86 K Tropopause temperature = 71.4 K ( 42 km) Statopause temperature = 170 K (200 km) Bond albedo = 0.20 Solar flux = 1.1% of flux at Earth Surface pressure = 1496 mbar Titan may serve as a model of a highly reduced early Earth atmosphere in which the first stages of organic chemical evolution could take place in the atmosphere. Laboratory simulations show that a Titan-like atmosphere, primarily a N /CH mixture, under various energetic excitations forms not only HCN (CN) , and HC N (observed on Titan as a result of photodissociation reactions), but also

23. Exobiology - Definition Of Exobiology By The Free Online Dictionary, Thesaurus A ex o bi ol o gy (k sb-l-j) n. The branch of biology that deals with the search for extraterrestrial life and the effects of extraterrestrial surroundings on living organisms. http://www.thefreedictionary.com/exobiology

24. Exobiology - Definition Of Exobiology At YourDictionary.com the branch of biology investigating the possibility of extraterrestrial life and the effects of extraterrestrial environments on living organisms from the earth http://www.yourdictionary.com/exobiology

25. Exobiology — Infoplease.com Encyclopedia exobiology. exobiology or astrobiology, search for extraterrestrial life within the solar system and throughout the universe. Philosophical speculation that there might be http://www.infoplease.com/ce6/sci/A0818031.html

26. Exobiology - Memory Alpha, The Star Trek Wiki exobiology (also called astrobiology or xenobiology) is the biological science concerned with living alien organisms. (DS9 Time's Orphan ) exobiology was also a course http://memory-alpha.org/wiki/Exobiology

Wikia Skip to Content Skip to Wiki Navigation Skip to Site Navigation Wikia Navigation Start a wiki Entertainment Fall TV Glee ... Memory Alpha Memory Alpha Navigation Portals Featured articles People Society and Culture ... Spoilers Random Page Wiki Activity Watchlist Recent changes Talk Exobiology edit this page Read more: Biology Starfleet Academy courses Edited by ThomasHL View full history Comparative xenobiological chart Added by Jörg Exobiology (also called astrobiology or xenobiology ) is the biological science concerned with living alien organisms Time's Orphan ") Exobiology was also a course taught at Starfleet Academy TNG Encounter at Farpoint The Host A biologist who specializes in the field of exobiology is referred to as an exobiologist , xenobiologist, or astrobiologist. The sub-discipline known as comparative xenobiology is the scientific study of the physiological features of various alien lifeforms. (Refer to comparative xenobiological chart.) On Starbase 515 , an exobiology research division was located in room 03-1444. ( TNG Samaritan Snare Lieutenant Jadzia Dax had a Premier Distinction in exobiology. (

27. Exobiology | Universe Today exobiology (same thing as astrobiology) is about life in space (on other planets, and moons; in other solar systems) where it is, what it is, how it started, http://www.universetoday.com/46851/exobiology/

28. Exobiology - WordReference.com Dictionary Of English exobiology definition, examples, discussions and forums for your questions. All Free. http://www.wordreference.com/definition/exobiology

29. EXOBIOLOGY: An Interview With Stanley L. Miller Image credits From Primordial Soup to the Prebiotic Beach. An interview with exobiology pioneer, Dr. Stanley L. Miller, University of California San Diego http://www.accessexcellence.org/WN/NM/miller.html

30. Introduction To Exobiology Introduction to exobiology You're driving in your car down dark road late one night with your friends. All of a sudden, you see a large circular object with blue lights http://www.chem.duke.edu/~jds/cruise_chem/Exobiology/index.html

Introduction to Exobiology You're driving in your car down dark road late one night with your friends. All of a sudden, you see a large circular object with blue lights spinning right in front of your car. A bright spotlight shines down on your car for ten seconds, and then leaves. As the object disappears before your eyes, you are left in amazement, wondering what just happened. Was that really a UFO? Is there really intelligent life out there in the universe? You turn around to ask your friends, only to find that one of them is missing� Sound a little farfetched? OK. How about something a little more down to Earth. You just got back from a two week vacation in Hawaii with your family. You walk into your room, throw down your suitcase, and sit on your bed. You glance over at the lamp on the table next to your bed. Reaching over to turn on the lamp, you notice a rather unpleasant smell. Looking down, there is a half full glass of what once might have been juice, but now is a nice bluish-green color with fuzz all around the edges. Yuck! Where did that come from? Scientists have been asking these same questions for a long time now. Come explore the field of exobiology, the search for the origin of life on the Earth, and in the Universe.

31. Exobiology: Information From Answers.com ID 661 DATE 200604-09 TYPE WORD TITLE exobiology DESCRIPTION the search for extraterrestrial life and its effect on living organisms http://www.answers.com/topic/exobiology-1

32. Exobiology Definition Of Exobiology In The Free Online Encyclopedia. exobiology or astrobiology, search for extraterrestrial life life, although there is no universal agreement as to a definition of life, its biological manifestations are http://encyclopedia2.thefreedictionary.com/exobiology

33. Adamski Foundation - Exobiology / UFOs exobiology, Astrophysical, Lunar, and UFO research. http://www.gafintl-adamski.com

Spanish Version "Las respuestas en Espa�ol est�n limitadas al tiempo de que se disponga. Se agradecer�a si pudieran enviar sus preguntas y comentarios a ser posible en Ingl�s." [Limited Spanish responses based upon volunteer time only, please send Your comments in English if possible.] Spanish Translation for G.A.F. by: Jesus Millan Arias - Barcelona - Spain Click to continue Indications of advanced human civilizations on other planets and implications for earth: Welcome to The Only Authorized Information Update - Adamski Page Adamski Foundation Email gafintl @ aol.com (New mail as of 2007) (spam pervention: cut and paste address into your email program to send) Viewing Information: BROWSER Navigator or Microsoft Internet Explorer MONITOR - This site is designed to display at a 640x480 screen resolution. To see this important information, animations and photos as they are intended to be viewed, set your monitor to view 32 bit color, or as many colors as possible. Set your browser font to default. Download PERMISSION / STIPULATIONS pdf file Click Here Look to the stars... where others already are

34. Exobiology: The Search Of Life On Mars exobiology The Search for Life on Mars. Exobiologists seek to understand how life originated on Earth by studying chemical and physical conditions elsewhere in our solar http://cmex.ihmc.us/SiteCat/sitecat2/exobiolo.htm

Exobiology: The Search for Life on Mars Exobiologists seek to understand how life originated on Earth by studying chemical and physical conditions elsewhere in our solar system and our galaxy. The origin of life on Earth is not well understood but was evidently based on chemical evolution from simple compounds present on the newly formed planet to create a system of replicating organic chemicals. Unfortunately, it is difficult to study early Earth directly because the earliest geological formations have been largely erased by erosion and deposition. In contrast, on Mars we can still see the early crust in the form of heavily cratered highlands. Major exobiology goals for Mars are to Determine whether life presently exists on Mars or, as is thought more likely, has existed in the past Define the nature of early martian environments and understand differences from the early environments of Earth Determine the history of the biogenic elements (Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur, Phosphorus) on Mars and of organic chemistry there (that is, the chemistry of carbon bearing compounds whether biologic or abiologic in origin) In order to achieve these goals

35. Exobiology - Definition And More From The Free Merriam-Webster Dictionary Definition of word from the MerriamWebster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. http://www.merriam-webster.com/medical/exobiology

36. Careers Careers in exobiology In field of exobiology entails many different disciplines. Physicists, biologists, and chemists are just a few of the types of occupations which have a http://www.chem.duke.edu/~jds/cruise_chem/Exobiology/careers.html

Careers in Exobiology In field of exobiology entails many different disciplines. Physicists, biologists, and chemists are just a few of the types of occupations which have a place in exobiology. Indeed, exobiology is one of the most inter-disciplinary fields in the realm of science. With so many different types of jobs, exobiology is a fascinating field to work in, and because it is relatively new, it will be thriving for a long time to come. Let�s look at some of the occupations in exobiology, and see if any of them interest you. Biologist A biologist is someone who studies life. This is a pretty broad topic, so there are molecular biologists, microbiologists, bioengineers, biochemists, and numerous others. Each specializes in one area, but usually works with people who do not have the same job as themselves. For example, a molecular biologist studies biology at the molecular level. This includes studying enzymes and catalysts which are important to life as we know it. However, molecular biologists don�t work all by themselves. A molecular biologist might be involved in creating a new drug for the treatment of prevention for some disease, and so would be working with chemists in the creation and manufacturing of a drug, as well as working with lawyers who need to provide the legal skills to put a new drug out on the market. Chemist A chemist is someone who studies chemicals and their reactions. Most chemists work in laboratories. Work in the laboratory often includes determining the compostion of materials. This is very important in exobiology. Chemists in exobiology have studied meteorites which have fallen to the earth. In studying these samples, chemists are looking for clues to what the atmospheres and environements on other planets may have been. They also are looking for amino acids, especially homochiral amino acids, which would be a very good indicator of life elsewhere in the universe. Aside from exobiology, chemists are involved in most areas of the economy. Whenever a product is manufactured, chemists are involved to create the products composition, and to see if it is safe for the public.

37. What Does Exobiology Mean? Definition And Meaning (Free English Language Diction Definition of exobiology in the AudioEnglish.net Dictionary. Meaning of exobiology. What does exobiology mean? Proper usage of the word exobiology. Information about exobiology http://www.audioenglish.net/dictionary/exobiology.htm

38. Astronomy Supplement - Exobiology Table of Contents. 25.1. Life in the Solar System. 25.1.1. The Chemistry of Life on Earth; Box 25.1. The Genetic Code, DNA Molecules; 25.1.2. Intelligent Humanoids http://physics.gmu.edu/~jevans/astr103/CourseNotes/ECText/ch25_txt.htm

Astronomy Supplement 25. Exobiology Latest Modification: October 26, 1998 Table of Contents 25.1. Life in the Solar System 25.1.1. The Chemistry of Life on Earth Box 25.1. - The Genetic Code, DNA Molecules 25.1.2. Intelligent Humanoids 25.1.3. The Search for Life in the Solar System 25.2. Life in the Universe 25.2.1. Beyond the Solar System 25.2.2. How Many Civilizations in Our Galaxy Now? 25.2.3. Extraterrestrial Communication and Interstellar Travel 25.2.4. Has the Earth Been Visited? 25.3. Traveling the Universe? 25.3.1. Interstellar Travel 25.3.2. Has the Earth Been Visited? Biologists are not unanimous on all the factors in the definition of life, but most agree that life is different from nonlife: It evolves or changes (by chance mutations or otherwise) as time goes on while interacting with its environment in a unique way. But most important, life is not a "thing", it is a process made up of an unimaginably large number of complex chemical reactions that collectively produce all the characteristics we associate with life. 25.1. Life in the Solar System

39. Answers.com - Exobiology Is The Study Or Science Of life or its possibility on other planets. exobiology or Astrobiology, search for extraterrestrial life within the solar system and throughout the universe. http://wiki.answers.com/Q/Exobiology_is_the_study_or_science_of

40. Exobiology Definition - Dictionary - MSN Encarta ex o bi ol o gy ksō bī lləjee noun Definition outerspace biology a branch of biology concerned with the possibility that life forms exist on other planets http://encarta.msn.com/dictionary_1861609777/exobiology.html

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