Related by context. Frequent words. (Click for all words.) 70 Stephen Hawking 49 Kurzweil 48 Pratchett 45 Diamandis 44 Higgs 44 quantum physics 44 Richard Dawkins 43 theoretical physicist 43 astrophysicist 42 Carl Sagan 42 physicists 41 quantum theory 41 spaceship 41 astrophysicists 41 quantum computing 41 Einstein theory 40 physicist 40 Einstein 40 cosmology 40 singularity 40 Brief History 40 wormhole 40 Charles Darwin 39 Darwin theory 39 zero gravity 39 science fiction 39 quantum mechanics 39 teleportation 39 theoretical physics 39 Berners Lee 38 jetpack 38 general relativity 38 Isaac Asimov 38 Yudof 38 evolutionary theory 38 Rowling 38 Melvill 38 Bezos 38 Shostak 38 Albert Einstein 38 parallel universes 38 Kaku 37 cosmos 37 Gene Roddenberry 37 Trebek 37 Behe 37 motor neurone disease 37 Ishiguro 37 astronomer 37 Singularity 37 mathematician 37 Pinker 37 mathematicians 37 Rutan 36 Cleese 36 Qaradawi 36 Gaiman 36 Navarro Valls 36 Nimoy 36 physics 36 Tardis 36 astrophysics 36 creationists 36 Michael Crichton 36 UFOs 36 Gaskell 36 Physicist 36 Cosmology 36 Cerf 36 Terry Pratchett 36 Crichton 36 Universe 36 Dawkins 36 particle physics 36 weightlessness 36 astronomy 36 artificial intelligence 36 evolutionists 36 Daleks 36 universe 36 Squyres 35 spacecraft 35 Richard Garriott 35 Ian McKellen 35 X Prize 35 extraterrestrials 35 Hitchens 35 Mankiw 35 outer space 35 Judt 35 Da Vinci 35 boffin 35 Asimov 35 Nobel laureate 35 Creationism 35 Lévy 35 TARDIS 35 Crick 35 Archbishop Tutu 35 Nasa 35 scientific breakthroughs