Related by context. Frequent words. (Click for all words.) 67 Stephen Hawking 63 Professor Stephen Hawking 59 Astrophysicist 56 Professor Hawking 55 Physicist 55 physicist Stephen Hawking 55 theoretical physicist 54 Hawking 53 scientist Stephen Hawking 52 Richard Feynman 50 particle physicist 50 Stephen Wolfram 50 Nobel Prize Winner 50 James Lovelock 49 Nobel laureate 48 physicist 48 cosmologist 48 Nobelist 48 Ada Yonath 48 astrophysicist 47 Nobel Laureate 47 Albert Einstein 46 Bad Astronomy 46 mathematician 46 Steven Pinker 46 physicists 46 Biochemist 45 Ray Kurzweil 45 astrophysics 45 Mathematician 45 Satirist 45 Francis Crick 45 theoretical physics 45 Niels Bohr 45 Perimeter Institute 44 Neil deGrasse Tyson 44 Phil Plait 44 Thomas Steitz 43 boffin 43 Alan Turing 43 astrobiologist 43 Astronomer Royal 43 Richard Dawkins 43 Simon Baron Cohen 43 Neuroscientist 43 general relativity 43 Peter Gruenberg 43 Einstein theory 43 Roger Highfield 43 Ian Wilmut 43 biochemist 43 Einstein 43 theoretical physicists 43 Polanyi 43 D.Phil 43 Templeton Prize 42 Sir Tim Berners 42 Carl Sagan 42 Harold Varmus 42 Nobel prize 42 Astronomer 42 Lord Sainsbury 42 scientific discoveries 42 Konstantin Novoselov 42 Wilmut 42 Gravity Probe B 42 tycoon Richard Branson 42 Michael Shermer 42 Terry Pratchett 42 quantum physics 42 Nicolaus Copernicus 42 Feynman 41 Tim Berners Lee 41 Astrophysicists 41 Linus Pauling 41 astronomer Carl Sagan 41 Dean Kamen 41 cosmologists 41 Nobel Prize laureate 41 Tony Judt 41 Craig Venter 41 double helix structure 41 NASA Kepler 41 Christopher Monckton 41 chancellor emeritus 41 CfA 41 Nobel Prize 41 Uri Geller 41 NASA Astronaut 41 Andre Geim 41 Big Bang theory 40 Wernher von Braun 40 particle physics laboratory 40 Stephen Fry 40 stargazer 40 AC Grayling 40 Leroy Hood 40 NASA astronaut 40 Higgs Boson 40 Peter Agre 40 Nasa