Related by context. Frequent words. (Click for all words.) 62 Galileo Galilei 61 Nicolaus Copernicus 55 Johannes Kepler 54 Pope Leo XIII 51 classical antiquity 51 physicist Albert Einstein 51 interplanetary spacecraft 50 Consolmagno 49 orbiting telescope 49 Giorgio Vasari 49 Gregor Mendel 49 Galilei 49 astronomical observations 48 photoelectric effect 48 Pontificate 48 planet Uranus 47 Brahe 47 born Karol Wojtyla 46 Fra Angelico 46 astronomical observatory 46 Emperor Constantine 46 Edwin Hubble 46 Guglielmo Marconi 46 Pope Pius IX 46 Dante Divine Comedy 45 Big Bang theory 45 Irenaeus 45 Rome La Sapienza 45 Nicea 45 cosmonaut Yuri Gagarin 45 Gregory XIII 45 heroic virtues 45 Glemp 45 Frale 45 Johannes Gutenberg 45 Pope Pius XI 45 Galileo spacecraft 45 Clyde Tombaugh 45 astronomers 45 Antikythera Mechanism 45 scientism 45 fifteenth century 44 solstices 44 Cassini Huygens 44 sacred Scripture 44 Candlemas 44 astronomical calculations 44 Tertullian 44 Voyager spacecraft 44 occultation 44 Baal Shem Tov 44 ancient pagan 44 Albert Hofmann 44 Inca Empire 44 Monsignor Slawomir Oder 44 ancients 44 thirteenth century 44 Galileo 44 Father Maciel 44 Teutonic Knights 43 Seracini 43 Lateran 43 bodily resurrection 43 burial cloth 43 COROT 43 Copernicus 43 innermost planet 43 Turin Shroud 43 celestial phenomenon 43 ancient Mayans 43 Niels Bohr 43 papal infallibility 43 epoch 43 Sumerians 43 Paracelsus 43 hundredth anniversary 43 twentieth century 43 Eighteenth century 43 DuPont Oval 43 Cosmologists 43 ESO Very Large Telescope 43 Gottlieb Daimler 43 #th century 43 fourteenth century 43 Eadgyth 42 Eusebius 42 Southern Observatory ESO 42 annus mirabilis 42 Astronomer Royal 42 Küng 42 camera obscura 42 gravitational wave 42 Martin Heidegger 42 Giotto 42 Jesus resurrection 42 celestial 42 World Columbian Exposition 42 frequency comb 42 Etruscans 42 transubstantiation 42 Halley comet