Related by context. Frequent words. (Click for all words.) 46 Sagan 45 Astrophys 37 Correspondence Dr 36 CTO 35 J. Biol 34 sadi 34 explained 34 Prof. 33 told SciDev.Net 33 conveyed greetings 33 postdoctoral scholar 33 theorized 33 Evelin 33 vicepresident 33 Dr 33 remarked 32 Worldwide Channels 32 Niels Bohr 32 Prof 32 THE EASTERN ECHO 32 NewsNetNebraska 31 Bridgit 31 Mr. 31 told ISRAEL#c 30 told InternetNews.com 30 recollected 30 told TechNewsWorld 30 Derin 30 told BioWorld Today 30 noted 29 Richard Feynman 29 Decl 29 Kirsipuu 29 Feynman 29 hypothesizes 29 said.In 29 Mr 29 astronomer Carl Sagan 29 Announces Appointment 29 saud 29 Ph.D. postdoctoral fellow 29 said 29 Contacted 29 Sarkissian 29 conjectured 29 Guerini 29 Alica 29 Founder 28 told internetnews.com 28 Eds. 28 Concurring 28 Von Braun 28 said.He 28 Vivianne 28 profusely thanked 28 posited 28 speculates 28 without elaborating 27 Appoints 27 Lysa 27 Wohlberg 27 elucidated 27 Wolfgang Vault 27 asks rhetorically 27 elaborated 27 Said 27 Event organizer 27 emphasized 27 mused 27 Messrs. 27 Remarked 27 postulated 27 Elaborating 27 Bennati 27 asserted 27 Simoni 27 muses 27 Fedrigo 27 LiveScience 27 told NewsFactor 27 asked rhetorically 27 Consolmagno 27 hypothesised 27 Norlin 26 warmly congratulate 26 Bahcall 26 Answering question 26 hypothesized 26 Einstein 26 Explaining 26 Druyan 26 theorizes 26 Dr. 26 Summarising 26 Frischkorn 26 astrobiologists 26 showered praises 26 Rathmann 25 Impey 25 warmly congratulated 25 Congratulating