Related by context. Frequent words. (Click for all words.) 46 NASA Kepler 46 extrasolar planet 45 Galaxy Evolution 44 meteorite 44 exoplanet 43 Clyde Tombaugh 42 discoverers 42 amateur astronomers 42 comet 42 hydrothermal vent 42 meteor 42 Halley comet 41 meteorites 40 astronomers 40 comets 40 OGLE 40 Gamma ray bursts 40 Burgess Shale 40 Comet McNaught 40 astronomical objects 40 discoveries 40 bigfoot 40 plesiosaur 40 Higgs particle 39 astronomer 39 Opexa Therapeutics 39 Bad Astronomy 39 astrobiologists 39 extrasolar planets 39 hunters 39 comet dust 39 optical biosensors 39 Asteroid 39 distant galaxy 39 dinosaur footprints 39 fossil hunter 39 discovery 38 dinosaur fossils 38 Meteorite 38 extraterrestrial 38 interplanetary spacecraft 38 planets orbiting 38 palaeontology 38 exoplanets 38 Stardust spacecraft 38 NASA Cassini 38 comet nucleus 38 Jupiter moons 38 asteroid 38 Bigfoot 38 cometary 38 comet Wild 38 large billed reed 38 habitable planets 38 Halley Comet 38 explorers 38 chupacabra 38 COROT 37 Voyager spacecraft 37 Meteorites 37 Tut tomb 37 celestial object 37 meteoroid 37 radial velocity 37 Orion Nebula 37 gravitational wave 37 subatomic particle 37 Aladdin Cave 37 sasquatch 37 XMM Newton 37 Gehrels 37 NASAs 37 amateur astronomer 37 giant Palouse earthworm 37 Crab Nebula 37 Tasmanian tiger 37 Astrophysicists 37 star gazers 37 alien beings 37 ivory billed woodpecker 37 brown dwarfs 36 UFO 36 globular clusters 36 astrobiology 36 Palomar Observatory 36 microlensing 36 dwarf galaxy 36 observatory 36 dinosaur fossil 36 Astrophysicist 36 www.nasa.gov 36 telescope 36 Hubble Telescope 36 undiscovered 36 marine reptiles 36 treasure hunters 36 planetary nebulae 36 GRB # 36 physicists 36 buried treasure 36 treasure troves