Related by context. Frequent words. (Click for all words.) 54 COROT 53 Astrophysicist 52 Halley comet 50 Astronomer Royal 50 Paul Dirac 50 LOFAR 50 philologist 50 interplanetary spacecraft 50 astronomer 49 Oort cloud 49 Leverhulme Trust 49 Wilkinson Microwave Anisotropy Probe 48 planet Uranus 48 Siding Spring 48 Tycho Brahe 48 Nicolaus Copernicus 48 Astronomer 47 microlensing 47 Galaxy Evolution 47 CoRoT 47 WG Sebald 47 Roger Highfield 47 Wales Aberystwyth 47 Lulin 47 Exoplanet 47 WASP #b 47 Halley Comet 47 astrophysicists 47 Phaethon 46 Jodrell Bank Observatory 46 astronomers 46 Galileo spacecraft 46 Einstein theories 46 meteoroid 46 boson 46 astronomical telescope 46 Roehampton University 46 XMM Newton 46 classical antiquity 46 Algol 46 noctilucent clouds 46 National Astronomical Observatory 46 astronomical phenomena 46 Particle Physics 46 Astrophysicists 46 HD #b [002] 46 James Lovelock 46 heavily cratered 45 Cosmologists 45 orbiting Hubble Space Telescope 45 Johannes Kepler 45 Dante Gabriel Rossetti 45 Charles Babbage 45 Southern Observatory ESO 45 perihelion 45 geoid 45 physicist 45 Professor Stephen Hawking 45 Nibiru 45 Domesday 45 planetoid 45 Philae 45 cosmologists 44 cosmologist 44 Cancri 44 stargazer 44 radial velocity 44 Mathematician 44 physicists 44 science journal Nature 44 Thomas Malthus 44 astrophysicist 44 prehistoric monument 44 Globish 44 E = mc2 44 Hawking radiation 44 Crab Nebula 44 Antarctic explorer 44 VIRTIS 44 innermost planet 44 landforms 44 Very Large Array 44 particle physicists 43 Bodleian Library 43 supermoon 43 Planetary Physics 43 ESO Very Large Telescope 43 VLBI 43 Gustave Flaubert 43 Cassini Huygens 43 planet orbits 43 Brownian motion 43 Andromeda galaxy 43 chef Heston Blumenthal 43 mesosphere 43 geographer 43 ultraviolet wavelengths 43 Samuel Pepys 43 constellation Virgo 43 Gravity Probe B 43 Observatory