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extraterrestrial radiation

См. также в других словарях:

  • extraterrestrial life — Introduction   life that may exist or may have existed in the universe outside of Earth. The search for extraterrestrial life encompasses many fundamental scientific questions. What are the basic requirements for life? Could life have arisen… …   Universalium

  • Extraterrestrial materials — Most atoms on earth came from the interstellar dust and gas from which the sun and solar system formed. However, in the space science community extraterrestrial materials generally refers to objects now on earth that were solidified prior to… …   Wikipedia

  • Extraterrestrial atmospheres — The study of extraterrestrial atmospheres is an active field of research, [cite web| title=Department of Atmospheric Science, University of Washington | url=http://www.atmos.washington.edu/academic/planets.html | accessdate=2007 05 24] both as an …   Wikipedia

  • Search for Extraterrestrial Intelligence — SETI ist das Akronym für “Search for Extraterrestrial Intelligence” (deutsch: „Suche nach außerirdischer Intelligenz“). Damit bezeichnet man die Suche nach außerirdischen Zivilisationen. Seit 1960 werden verschiedene wissenschaftliche… …   Deutsch Wikipedia

  • Search for extraterrestrial intelligence — The search for extraterrestrial intelligence is sometimes abbreviated as SETI. For other uses, see SETI (disambiguation). Screen shot of the screensaver for SETI@home, a distributed computing project in which volunteers donate idle computer power …   Wikipedia

  • Communication with extraterrestrial intelligence — (CETI) is a branch of the search for extraterrestrial intelligence that focuses on composing and deciphering messages that could theoretically be understood by another technological civilization. The best known CETI experiment was the 1974… …   Wikipedia

  • Communication with Extraterrestrial Intelligence — CETI (Communication with Extraterrestrial Intelligence) is a branch of SETI research that focuses on composing and deciphering messages that could theoretically be understood by another technological civilization. The best known CETI experiment… …   Wikipedia

  • ionosphere and magnetosphere — ▪ atmospheric science Introduction       regions of Earth s (Earth) atmosphere in which the number of electrically charged particles ions (ion) and electrons (electron) are large enough to affect the propagation of radio waves (electromagnetic… …   Universalium

  • radio astronomy — the branch of astronomy that utilizes extraterrestrial radiation in radio wavelengths rather than visible light for the study of the universe. [1945 50] * * * …   Universalium

  • radio astronomy — ra′dio astron omy n. astron. the branch of astronomy that utilizes extraterrestrial radiation in radio wavelengths rather than visible light for the study of the universe • Etymology: 1945–50 …   From formal English to slang

  • Panspermia — (Greek: πανσπερμία from πᾶς/πᾶν (pas/pan) all and σπέρμα (sperma) seed ) is the hypothesis that life exists throughout the Universe, distributed by meteoroids, asteroids and planetoids.[1] Panspermia proposes tha …   Wikipedia


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