LEADER 01785nam 2200505 450 001 9910704756903321 005 20131018093305.0 035 $a(CKB)5470000002444156 035 $a(OCoLC)860982004 035 $a(EXLCZ)995470000002444156 100 $a20131018d2013 ua 0 101 0 $aeng 135 $aurcn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aAdvanced-to-revolutionary space technology options $ethe responsibly imaginable /$fDennis M. Bushnell 210 1$aHampton, Virginia :$cNational Aeronautics and Space Administration, Langley Research Center,$d[2013] 215 $a1 online resource (26 pages) $cillustrations 225 1 $aNASA/TM 2013-217981 300 $aTitle from title screen (viewed Oct. 18, 2013). 300 $a"April 2013." 320 $aIncludes bibliographical references (pages 25-26). 517 $aAdvanced-to-revolutionary space technology options 606 $aManned Mars missions$2nasat 606 $aCost effectiveness$2nasat 606 $aManned space flight$2nasat 606 $aSpace exploration$2nasat 606 $aLow Earth orbits$2nasat 606 $aTechnology utilization$2nasat 615 7$aManned Mars missions. 615 7$aCost effectiveness. 615 7$aManned space flight. 615 7$aSpace exploration. 615 7$aLow Earth orbits. 615 7$aTechnology utilization. 700 $aBushnell$b Dennis M.$01168120 712 02$aUnited States.$bNational Aeronautics and Space Administration, 712 02$aLangley Research Center, 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910704756903321 996 $aAdvanced-to-revolutionary space technology options$93501386 997 $aUNINA