Geometry.Net - Biology: Exobiology

Exobiology: Laying The Groundwork In A Search For Extrasolar Life
exobiology Laying the Groundwork in a Search for Extrasolar Life.Michael Meyer, exobiology Program, NASA Headquarters How did life
http://astrobiology.arc.nasa.gov/workshops/1996/palebluedot/abstracts/meyer_01.h

Extractions: Michael Meyer, Exobiology Program, NASA Headquarters How did life begin, both here and perhaps elsewhere? Are we alone, a chemical fluke, or are we the result of a process common in the universe? Prior to this century the question of our origin has been relatively unconstrained. With knowledge gained through experimentation and space science - about Earth, the solar system, and the universe - the question of our origins has become a serious scientific quest. Exobiology, the study of the origin, evolution, and distribution of life in the universe, embodies this quest. With the recognition that: chemical evolution proceeded rapidly to life on Earth, life may be a natural consequence of planetary evolution, and planetary systems may be common in the universe, life is likely to be common in the universe. How can we find it? With modeling, observation, and sampling in our solar system, we can learn of the planets' evolution through time. What is the relative importance of distance from the sun, bulk composition, and mass that determine whether the planetary body could have ever sustained life. What planetary bodies are the better candidates for life around other stars? What are the potential signatures for life? So far, we have only one example, rather evolved life at that. How would Earth's biosphere appear from space? Technology has an obvious signature but technology has been here for an extremely limited period of time. For the last 2 billion years, Earth's biosphere has been dominated by oxygenic photosynthesis - ozone would be an indicator. Chemical disequilibria are maintained by biology and could be indicative of life, for example methane or nitrous oxide in the presence of oxygen. But what of early Earth? What combination of reduced species would be indicative of life in a reducing atmosphere? Perhaps Earth's atmosphere was dominated by volcanic activity during its first 1.5 billion years, swamping any biological signature. An alternative maybe to search for a predominance of an optically active pigment, like chlorophyll or rhodopsin.
Directory :: Look.com
exobiology (46) Other Categories. Extrasolar universe. exobiologyProgram at OSS A program of the NASA Office of Space Sciences.
http://www.look.com/searchroute/directorysearch.asp?p=26685
Science: Astronomy: Extraterrestrial Life: Exobiology - WorldSearch.com
exobiology (also known as Astrobiology or Xenobiology) is a branch of biology investigatingthe possibility of extraterrestrial life and studying the possible
http://www.worldsearch.com/dp.lisa/en/Science/Astronomy/Extraterrestrial_Life/Ex

Extractions: Starry Night - The Realistic Astronomy Software Did you know ? You can surf up to 50 times faster with a DSL access Tuesday, March 18, 2003 Famous Birthday: Queen Latifah Search For : What: In: Web Sites Shopping Books Used Books Calendars Magazines Popular Music Classical Music Used CDs VHS DVD Used DVDs/Videos Software Video Games Used Video Games Computers Electronics Toys Baby Outdoor Living Kitchen Auto Auctions SHOP: 2003 Calendars Autos Sports Gifts ... Shopping Guide FINANCING: Credit Cards Real Estate Loans FIND: Careers Personals Find People INTERNET: Access (ISP) Free MP3 Hosting Domain Registration ... Rings COMPUTER: Software Hardware Virus Protection
Ex Astris Scientia - Other Exobiology Inconsistencies
Other exobiology Inconsistencies.
http://www.ex-astris-scientia.org/inconsistencies1.htm

Extractions: Other Exobiology Inconsistencies "Strong Aliens" Shapeshifters Ktarians Other Races with Changing Faces "Strong Aliens" "Species 5618, human. Warp-capable, origin grid 325, physiology inefficient, below average cranium capacity, minimum redundant systems, limited regenerative abilities." (Borg Queen in VOY: Dark Frontier") For some reason, most humanoid aliens (not to mention the Borg), although they usually look very much like humans, seem to be physically stronger than humans. In addition, they have longer life spans, better developed hearing and sight, and other superior mental and physical capabilities. All of the above seems to apply to Vulcans, who have excellent minds (and mental discipline), are telepathic, are stronger, are able to hear a broader range of frequencies, and have self-healing capabilities. Klingons are at least much stronger and live much longer than humans (Kang, Koloth and Kor are still going into battle at the age of 140something!), and they have many redundant systems in their bodies. One question is why such a puny species like ours could have ever come so far and could have survived so long at all. Well, in the process of evolution strength or intelligence is not the primary criterion, but it is rather the ability to adapt and to reproduce, and this is where humans are apparently very efficient still in the 24th century. "Evolution" in a galactic scale is only in its very early stage, so we shouldn't compare humans to aliens in this respect - aside from my feeling that such comparisons would be sort of racist. Anyway, a lot of human deficiencies seem to be compensated by other general qualities. Humans, for instance, are very often shown as ingenious minds, such as Richard Daystrom or Carol Markus. This should make the human species a match to seemingly stronger aliens.
Bigchalk: HomeworkCentral: Exobiology (Other Fields)
Looking for the best facts and sites on exobiology? HIGH SCHOOL BEYOND Science Life Sciences (Biology) Other Fields exobiology.
http://www.bigchalk.com/cgi-bin/WebObjects/WOPortal.woa/Homework/High_School/Sci
Exobiology Website Results :: Linkspider UK
exobiology Websites from the Linkspider UK. exobiology Directory. Complete Resultsfor exobiology Related Topics. exobiology Websites from Linkspider UK.
http://www.linkspider.co.uk/Science/Astronomy/ExtraterrestrialLife/Exobiology/

Extractions: See Also: Health: Medicine: Medical Specialties: Aerospace Medicine Science: Biology: Biophysics Science: Biology: Theoretical Biology Science: Technology: Space: Space Colonization ... NASA Astrobiology Institute - A partnership between NASA and other research organizations to conduct and lead integrated multidisciplinary research in astrobiology, the study of life in the universe. The Astrobiology Web - An online guide to the origin, evolution, and distribution of life in the Universe as well as all other aspects of space exploration. Astrobiology Central - Contains a FAQ, discussion forum, and links related to astrobiology and SETI. Maintained by David J. Darling, Ph.D., author of "The Extraterrestrial Encyclopedia." Net Advance of Physics: Bioastronomy - An experimental page part of the MIT Net Advance project. Includes research and review articles, and offline as well as online materials.
Searchalot Directory For Exobiology
exobiology Branch at ARC NASA Ames Research Center conducts research seeking toincrease knowledge of the origin, evolution, and distribution of life in the
http://www.searchalot.com/Top/Science/Astronomy/ExtraterrestrialLife/Exobiology/

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Exobiology, Science Fiction, Aliens, Biology
3000 words First published in SFWA Bulletin, Winter 1997. Molvray homepage. They came from Outer Space Real Aliens. Mia Molvray © 1997
http://www.sff.net/people/mmolvray/aliens.htm

Extractions: A So what are some of these biological rules we're so familiar with but otherwise unaware of? The first rule of biology is that life evolves by natural selection. Characteristics that help an organism survive and reproduce get passed on to the next generation. Conversely, any characteristic that increases mortality (either of parents or their offspring) disappears with the individuals it did not help. Except for worlds run by angels or genetic engineers, even aliens will be ruled by natural selection. Though this may seem obvious, the implications are rarely considered. What would be wrong, for instance, in describing an alien species as having three eyesjust to make them a tad more weird? Natural selection has much to say about such things as third eyes. Eyes are incredibly useful, but they are also incredibly vulnerable. Imagine getting something wrong with one of your eyes and having no hospital to go to. The eye leads directly to the brain. Any accident, damage, or infection to an eye is likely to cause death. Is any creature in its right mind going to want extra organs like this, just waiting around, serving no particular purpose until they can kill him? Of course not. One eye is good; two eyes are even better because they can provide wide angle vision or depth perception; three eyes are deadly. More is not better.
Exobiology In Science > Astronomy > Extraterrestrial Life
Introduction to exobiology. Explores the field of exobiology from a lay perspectiveincluding a selftest. Part of the Hot Topics section. NSCORT in exobiology.
http://ilectric.com/browse/web/Science/Astronomy/Extraterrestrial_Life/Exobiolog

Extractions: Metasearch Directory News Multi-Search ... Login/Out Choose a Search Metasearch - The Web Metasearch - This Site Metasearch - News Metasearch - Auctions Metasearch - Forums Metasearch - Images Metasearch - Shopping Directory - Within This Category Only Directory - Entire Directory - Adult Directory - Arts Directory - Business Directory - Computers Directory - Games Directory - Health Directory - Home Directory - News Directory - Recreation Directory - Reference Directory - Regional Directory - Science Directory - Shopping Directory - Society Directory - Sports Directory - World Shopping - All products Shopping - Books Shopping - Electronics Shopping - Popular music Shopping - Classical music Shopping - DVD's Shopping - VHS Videos Shopping - In Theaters Shopping - Toys Shopping - Computer Hardware Shopping - Software Shopping - Magazines Shopping - Photo Shopping - Garden / Outdoor Living Shopping - Baby Shopping - Kitchen Lookup - Domain in Whois Lookup - Domain Availability Lookup - HTTP Source Lookup - DNS Record Directory Science Astronomy Extraterrestrial Life Exobiology Books See all 34 results in Books...
NL Future Prospects Exobiology Astrochemistry Astrobiology
exobiology / Astrochemistry / Astrobiology. The interdisciplinary scientific fieldunified by the term exobiology is a new and developing research area.
http://www.desc.med.vu.nl/Publications/nl_prospects/nl_astrobiology.htm

Extractions: Chemical / physical signature of planetary life Mars Mobile Lander "Rover" (2003) as part of research on life conditions in our solar system Evolution of Organic Matter in Space In the last decade a growing interest in the search for the origin of life on Earth has developed. Recent research in "life sciences" have strongly increased our knowledge in the processes of prebiotic evolution. The current field is divided into three parts that emphasise the main steps in the evolution of life in the universe: The formation of the extraterrestrial organic matter and the subsequent delivery to the early Earth. The formation of the first structures that resemble living cells as we know them. The evolution of these cells to modern organisms.
Nat'l Academies Press, Life Sciences (1988), 2. Exobiology
2 exobiology WHAT IS exobiology? Throughout history, humanity's creation itsuniverse and its 2 exobiology WHAT IS exobiology?
http://www.nap.edu/books/0309038804/html/8.html

Extractions: Openbook Linked Table of Contents Front Matter, pp. i-viii Contents, pp. ix-x 1. Introduction, pp. 1-7 2. Exobiology, pp. 8-58 3. Global Biology/Biospheric Scienc..., pp. 59-68 4. Controlled Ecological Life Suppo..., pp. 69-71 5. Space Biology, pp. 72-76 6. Human Biology and Space Medicine..., pp. 77-129 7. International Cooperation in Spa..., pp. 130-133 8. Instrumentation and Technology, pp. 134-144 Openbook Linked Table of Contents Front Matter, pp. i-viii Contents, pp. ix-x 1. Introduction, pp. 1-7 2. Exobiology, pp. 8-58 3. Global Biology/Biospheric Scienc..., pp. 59-68 4. Controlled Ecological Life Suppo..., pp. 69-71 5. Space Biology, pp. 72-76 6. Human Biology and Space Medicine..., pp. 77-129 7. International Cooperation in Spa..., pp. 130-133 8. Instrumentation and Technology, pp. 134-144 The Open Book page image presentation framework is not designed to replace printed books, nor emulate HTML. Rather, it is a free, browsable, nonproprietary, fully and deeply searchable version of the publication which we can inexpensively and quickly produce to make the material available worldwide. For most effective printing, use the "print" button available via the OpenBook tool block, above. The 300 x 150 dpi PDF linked to it is printable on your local printer.
The UK Exobiology Network Media Site
UK exobiology Network Media Site. Press Briefing Press Pack - 1999 Dec 13- Illustrations. UK Astrobiology Report - 1999 Nov 25th - Illustrations.
http://astrobiology.rl.ac.uk/media/Welcome.html
[34.01] The Rebirth Of Exobiology
34.01 The Rebirth of exobiology. CF Chyba (SETI The word exobiologywas coined at the dawn of the space age. But the subsequent
http://www.aas.org/publications/baas/v30n3/dps98/489.htm

Extractions: Invited Plenary Session at Banquet, Wednesday, October 14, 1998, 8:30-9:15pm, Grand Terrace [Previous] [Session 34] [Next] C.F. Chyba (SETI Institute and Department of Geological and Environmental Sciences, Stan) The author(s) of this abstract have provided an email address for comments about the abstract: chyba@seti.org [Previous] [Session 34] [Next]
Astrochemistry & Exobiology - Chemistry
lecture notes, conferences, and databases. exobiology as it relatesto chemistry is also included. Analysis of Astronomical Spectra
http://chemistry.about.com/cs/astrochemistry/
Subject: Exobiology
Subject exobiology. Skip subject categories
http://trs.nis.nasa.gov/view/subjects/lscience-exo.html

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