The study of the necessary conditions to support life on other planets. NASA's Exobiology program studies the origin, evolution and distribution of life in the universe.
   They trace the pathways by which biogenic elements (Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus and Sulfur) evolved through the major epochs of living systems. These epochs are: The cosmic evolution of biogenic compounds; Prebiotic evolution; The early evolution of life; and The evolution of advanced life. NASA wants to know the history of biogenic compounds from their creation in stars to their incorporation into planetary bodies.
   Their research into prebiotic evolution studies the processes leading from the creation of a planet to the creation of life on that planet. To understand what planetary and molecular processes must exist to allow the necessary physical and chemical conditions to create life, they study four areas. They are: To determine what physical and chemical conditions existed on a planet, and the molecular processes, within which a living system arose; Create models of environments where chemical evolution could have occurred; Determine what chemical systems were in place to allow metabolic and replicating systems to exist on the planet; and Determine how prebiotic organic matter has been preserved in the planets material (rocks, etcetera.). See Exopaleontology.

The writer's dictionary of science fiction, fantasy, horror and mythology. 2014.

Look at other dictionaries:

  • exobiology — [eks΄ō bī äl′ə jē] n. the branch of biology investigating the possibility of extraterrestrial life and the effects of extraterrestrial environments on living organisms from the earth exobiological adj. exobiologist n …   English World dictionary

  • exobiology — noun Date: 1960 a branch of biology concerned with the search for life outside the earth and with the effects of extraterrestrial environments on living organisms • exobiological adjective • exobiologist noun …   New Collegiate Dictionary

  • exobiology — exobiological /ek soh buy euh loj i keuhl/, adj. exobiologist, n. /ek soh buy ol euh jee/, n. the study of life beyond the earth s atmosphere, as on other planets. Also called astrobiology, space biology. [1955 60; EXO + BIOLOGY] * * * …   Universalium

  • exobiology — noun The branch of biology dealing with extraterrestrial lifeforms. Syn: astrobiology …   Wiktionary

  • exobiology — exo·bi·ol·o·gy bī äl ə jē n, pl gies a branch of biology concerned with the search for life outside the earth and with the effects of extraterrestrial environments on living organisms called also astrobiology exo·bi·o·log·i·cal .bī ə läj i kəl… …   Medical dictionary

  • exobiology — study of extraterrestrial life Sciences and Studies …   Phrontistery dictionary

  • exobiology — n. study of the possibility of life on other planets,ex·o·bi ol·o·gy || ‚eksəʊbaɪ É‘lÉ™dʒɪ / É’lÉ™ …   English contemporary dictionary

  • exobiology — noun the branch of science concerned with the possibility and likely nature of life on other planets or in space. Derivatives exobiological adjective exobiologist noun …   English new terms dictionary

  • exobiology — exo·biology …   English syllables

  • exobiology — ex•o•bi•ol•o•gy [[t]ˌɛk soʊ baɪˈɒl ə dʒi[/t]] n. astron. bio the study of the origin and evolution of life in the universe. Compare astrobiology • Etymology: 1955–60 ex o•bi o•log′i•cal əˈlɒdʒ ɪ kəl adj. ex o•bi•ol′o•gist, n …   From formal English to slang

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