Related by context. Frequent words. (Click for all words.) 60 Galileo Galilei 58 Copernicus 58 Johannes Kepler 55 Gregor Mendel 55 Galilei 54 physicist Albert Einstein 53 Niels Bohr 53 Brahe 52 planet Uranus 51 Edwin Hubble 50 Consolmagno 50 Pope Leo XIII 50 Paul Dirac 50 Big Bang theory 49 COROT 49 Turin Shroud 49 Southern Observatory ESO 49 Rembrandt van Rijn 49 astronomers 49 Clyde Tombaugh 48 Antonio Gramsci 48 Cosmologists 48 Albert Einstein 48 God Particle 48 astronomical observatory 48 Cassini Huygens 48 Giorgio Vasari 48 Einstein theory 48 Johannes Gutenberg 48 Claude Levi Strauss 47 Paracelsus 47 Quantum Optics 47 Nobelist 47 Jülich 47 DESY 47 Tubingen 47 Vikram Sarabhai 47 cosmonaut Yuri Gagarin 47 Martin Buber 47 Rome La Sapienza 47 Vatican Observatory 47 Union IAU 47 Werner Heisenberg 47 Giovanni Battista 47 Richard Feynman 47 Küng 47 Blaise Pascal 47 Gliese #g 46 Johann Wolfgang von Goethe 46 Stephen Wolfram 46 Nobel Prize Winner 46 Dr. Paolo Zamboni 46 Charles Babbage 46 physicists 46 cosmological 46 classical antiquity 46 Astrophysical Journal 46 double helix structure 46 Astronomical Observatory 46 quantum optics 46 Francis Crick 46 astronomical observations 46 Gunter Grass 46 cosmologists 46 Leonardo DaVinci 46 Astrophysicists 46 astronomer Carl Sagan 46 Nature Photonics 46 Theodore Herzl 46 STScI 45 Niels Bohr Institute 45 Snowball Earth 45 quantum theory 45 Einstein Theory 45 arXiv 45 La Sapienza 45 Lisa Gherardini 45 photoelectric effect 45 cosmology 45 philologist 45 Astrophysicist 45 Charles Darwin 45 Astrophysical Journal Letters 45 VI Lenin 45 NASA Kepler 45 Arthur Koestler 45 Martin Heidegger 45 Leonardo da Vinci 45 Einstein theories 45 Einstein 45 Eusebius 45 general relativity 45 extrasolar planet 45 Corot 45 astrophysicists 45 particle physics laboratory 45 Tony Judt 44 Nature Physics 44 Hannah Arendt 44 Garching 44 Edith Stein