Related by context. Frequent words. (Click for all words.) 60 physicist Stephen Hawking 57 Stephen Hawking 53 Hawking 45 theoretical physicist 44 Tim Berners Lee 42 Ray Kurzweil 42 astrophysicist 41 astronomer 41 unmanned spacecraft 41 Albert Einstein 41 physicist 40 Sir Ian McKellen 40 Nasa 40 Richard Dawkins 40 mathematician 40 astronaut 39 adventurer 39 Nobel laureate 39 Astronomer 39 Large Hadron Collider LHC 38 Isaac Asimov 38 manned spacecraft 38 Soviet dissident 38 Archbishop Desmond Tutu 38 Uri Geller 38 philosopher 37 Hubble telescope 37 explorer 37 evolutionist 37 science fiction 37 Berners Lee 37 David Attenborough 36 Sir Richard Branson 36 economist Milton Friedman 36 CERN 36 Pratchett 36 scientists 36 legend Pele 36 Craig Venter 36 physicists 36 Richard Garriott 36 Carl Sagan 36 observatory 36 polymath 35 Tony Blair 35 spacesuit 35 president Sepp Blatter 35 astronauts 35 author JK Rowling 35 Charles Darwin 35 cosmonaut 35 Salman Rushdie 35 Burt Rutan 35 Isaac Newton 35 Francis Crick 35 spaceship 35 NASA 35 cosmologists 35 general relativity 35 Nobel Laureate 35 boffin 35 Alan Greenspan 35 lunar orbiter 35 astrophysics 35 investor Warren Buffett 35 scientist 35 Aldous Huxley 35 novelist 35 HG Wells 34 Simon Wiesenthal 34 Michael Crichton 34 JK Rowling 34 astronaut Sunita Williams 34 Nobel Literature 34 Randy Pausch 34 Dean Kamen 34 SpaceShipOne 34 Einstein theory 34 manned missions 34 Royal Astronomical Society 34 Richard Branson 34 Booker Prize 34 Leonardo da Vinci 34 Physicist 34 manned spaceflight 34 theologian 34 spacemen 34 Noam Chomsky 34 Peter Molyneux 34 Marc Faber 34 astronaut Buzz Aldrin 34 fastest supercomputers 33 Nouriel Roubini 33 Kurt Vonnegut 33 Kurzweil 33 Niall Ferguson 33 Egyptologist 33 Francis Bacon 33 Philip Pullman 33 Large Hadron Collider 33 palaeontologist