Related by context. Frequent words. (Click for all words.) 62 Edwin Hubble 55 Astrophysicist 52 Claude Levi Strauss 50 physicist 50 aviator Charles Lindbergh 50 physicist Albert Einstein 50 Galileo Galilei 49 Clyde Tombaugh 49 STScI 49 Nicolaus Copernicus 49 astronomer 48 cosmologist 48 discoverer 48 Nobelist 48 Paul Dirac 47 Soviet cosmonaut Yuri Gagarin 47 anatomist 47 Bahcall 47 Richard Feynman 47 aviator Amelia Earhart 46 Hiram Bingham 46 Gene Cernan 46 Francis Crick 46 Antarctic explorer 46 Hubble telescope 46 Mathematician 46 Robert Peary 46 Thor Heyerdahl 46 Mars Pathfinder 46 Wernher von Braun 46 Anthropologist 46 neuropathologist 46 Hubble Telescope 45 Scott Crossfield 45 Gregor Mendel 45 Physicist 45 astrophysicist 45 COBE 45 theoretical physicist 45 Roger Kornberg 45 mathematician 45 Distinguished Scientist 45 Frank Borman 45 paleoanthropologist 45 cosmonaut Yuri Gagarin 45 Credit NASA JPL 44 Truman Scholar 44 astrophysicists 44 Geographer 44 infrared telescope 44 Ferdinand Magellan 44 Keck Observatory 44 orbiting telescope 44 Space Telescope 44 Gus Grissom 44 NASA Chandra 44 astronomers 44 astronomer Carl Sagan 44 Galileo spacecraft 44 Charles Babbage 44 Astronomer 44 Columbian mammoth 44 Apollo lunar 44 Amerigo Vespucci 44 Today Birthdays Author 43 interplanetary spacecraft 43 philologist 43 Distinguished Alumnus 43 polymath 43 American Philosophical Society 43 Professor Stephen Hawking 43 astronomical observatory 43 fossil hunter 43 Oceanographer 43 journal Applied Physics 43 Einstein theories 43 double helix structure 43 palaeontologist 43 NASA Kepler 43 Alan Turing 43 Madame Curie 43 Edwin Buzz Aldrin 43 Jodrell Bank Observatory 43 bacteriologist 43 Eric Foner 43 Neuroscientist 43 WM Keck Observatory 43 Buckminster Fuller 43 Galaxy Evolution 42 theoretical physicists 42 Galilei 42 Leonardo DaVinci 42 Cassini Huygens 42 X ray telescope 42 planet Uranus 42 botanist 42 Mauna Kea Hawaii 42 Nieman Fellow 42 Edward Teller 42 taxonomist 42 painter sculptor