Us Library Of Congress Smith, Marcia Possibility Of Intelligent Life Elsewhere In The Universe 1977

[COMMITTEEPRINT] POSSIBILITY INTELLIGENT COMMITTEEON TECHNOLOGY REPRESENTATIVES NINETY-FIFTH CONGRESSIONALRESEARCHSERVICE THELIBRARY UNIVERSITY URBANA-CHAMPAISN OCTOBER1977 Printedfor the Committee Scienceand Technology GOVERNMENTPRINTINGOFFICE WASHINGTON: 1977 Superintendent Documents, U.S. Government Washington, Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google TECHNOLOGY FREY, Jr., OOLDWATER, California Pennsylvania LUJAN,Jr., HOLLENBECK, California Pennsylvania McCORMACK, Washington California California BLANCHARD, Pennsylvania BEILENSON, California Consultant TechnicalConsultant Consultant Andelin,Jr., Consultant Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google OFTRANSMITTAL Representatives, Technology, Subcommittee Applications, Washington, Committeeon Technology, :Transmittedherewith ofthe Science ResearchDivision "Possibility Intelligent Universe," Thisdocument in1975.Because completion theInterstellar Communication increasing concernwith appropriate learnmoreand more aboutourselves and the universe intelligence the bounds planetsmay exist.Ifwe rationally sibilities and understandthe field.Thisdocument contributiontothat understanding. Sincerely, Subcommittee Scienceand Applications. Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google Digitized by Go gle Origiflal from UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN LETTEROFSUBMITTAL Congressional Washington, Subcommittee Applications, Technology, Representatives, discussions "Possibility Intelligent LifeElsewhere and is enclosed Smith,Analyst Technology, Division.Dr. informationon astrometry, AmesResearch ofassistance information in thisfield. Sincerely, Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google Digitized by Go gl~e Origimll from UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN Letterof transmittal submittalv Prefaceto the Revised Introduction* in our solar and the asteroids 3.Asteroids 6.Uranusand universalsearch: Possibilitiesand International interest30 Involvement31 Suitablestar Astrometry Apodization Receivingelectromagnetic currentsearches c.Othersearches53 interference61 electromagneticsignals Propulsion Interstellar Matter-antimatter Hibernation animation'- c.Relativistictravel Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google Characteristics intelligent extraterrestriallife characteristics Biological Artificial intelligence Sociological characteristicsand consequences Conclusions interstellarcommunication groupworkshops The SovietCETI C:Contentsofthe SpaceVoyagers, bibliography Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google conception Micellanic Verschuur. Astronomy, Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google Digitized by Go gle Origiflai from UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN PREFACETOTHE REVISEDEDITION originalpublication Subcommittee Applications Technology, Representatives significant developments Thesuccessful biological lifeonthat conclusionof Interstellar Communication StudyGroup theNational Aeronautics Administration, recommending extraterrestrial civilizationsbe concernthat initiated, socrowdedthat civilization bedrownedout Earth-generated interference (interested scientists allocationofa specifically extraterrestrial intelligence) Interstellar Commuication StudyGroup substitutethe ExtraterrestrialIntel more common (Communication, with Extrater Intelligence), emphasizing their intentiontolookfor adecisionon whetheror Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google oigitizedbyGo gle Origiflal from UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN long-standing beliefthat intelligent disappearing. philosophers possibility the celestial supporting intelligent discovered thatEarthwasnotthe speculation intensified. but current scientific lifeotherthan ourowndoesexist in this small simplebiological classifiedas intelligent. Recentestimates scientists, probability civilizations Way galaxy containsour astronomers calculatethatthere approximately 100billionother 100billionother are, then, universewhich conceivably supporting Scientists alreadybegun contacting civilizationsthat existinthe Ofthe methods available, categories canbeidentified electromagnetic spaceships unmanned). advantages advantages Electromagnetic informationata longperiods communication. passengers communicateamore completepicture travelat the technology availablefor receivingelectromagneticsignals, spaceships travelatamerefractionofthe toalterthe human life-cycle forourshort beenlaunched butitseems technology present-day technology interstellar airplanes. certainrisks involvedin intocontact intelligence, consequences contactisaface-to-face havearrived intercepted situation, safe since there requirement respond.xVlthough transmitting Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google years,only extremely coulddetect wellbeunknown.In intercepting to their trans missionscould learn their intentionstoward complicating factorwould transmitting appearbeneficent, whiletheir intentions malevolent. accruefrom establishing communication areassuch as necessarily acceptingany initially, possibilities titillating. detectinterstellar University NationalAeronautics Wecannotassertthat interstellarcontact probability, the risks.Wecannotseethat jeopardizedby the detection other life. Itiswhenwe nals thatwe assume risks that commitmentto receivingsignals communication, Extraterrestrial Intelligence, ratherthan the Communication with Extraterrestrial Intelligence. initiated, planetshaving probability supportingintelligent identified. stars which companions, istheworkofastronomers.There "discoveries" companions questioned other astron thatthedata collection techniques refracting observations), slightly,yielding similarto that tothe star refractorscan thisdefect. Scientists civilizations telescopes, arelimitednot technology receivers, interference radiowaves satellitesand commercialradio and vision.The band which scientists concludeis the carrymessages from other intelligences the "waterhole" increasingly otherservices. continues, distinguish man-madeinterference regardless technology becomes.If conducted, thewaterhole have tobereserved activities, locatedoutsidethe interference Earth-related Extraterrestrial Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google INTRODUCTION believedthatEarth oftheuniverse revolvedaround Earthlings immemorialthatwe arethe only intelligent lifein the universe. Copernicus demonstratedthatitwasEarththat discussions possibility sunsattractednewfollowers.The ridiculeand workson the Fontennelle, "Plurality Worlds".1Hisdis sertationtook theform ofa week'sconversationwitha wasindeedan excellentchanceof supportingintelligent Coplandpre favorofand Intelligent Theseworksarevaluableashistorical referencesonthe evolutionof Today,prominent scientists thereareother civilizations, contactwith that this fieldis unidentified supporters thesisthat intelligent contentionthat havevisitedEarth and current possibility that thereis intelligent discussions contactwith BernardduFontennelle. London.Red Pater-Noster-Row. Existenceof Other Rlvlngton, Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google Generated on 2015-06-09 17:41 GMT / http://hdl.handle.net/2027/uiug.30112026404811Public Domain, Google-digitized / http://www.hathitrust.org/access_use#pd-google Digitize-d by Go gle Origillal from UNIVERSITY Of ILLINOIS AT URBANA-CHAMPAIGN University Foundation, the Arecibo collecting additionto performing usual radioastron- Arecibowas totransmitman'sfirst intentionally existence.See photograph secondneareststar nouncedthe astronomers Subsequent possiblesystematic unambiguous there.Barnard's fromEarth. Barycenter commoncenterof