Related by context. Frequent words. (Click for all words.) 67 atop Mauna Kea 62 Keck telescopes 61 Keck Observatory 60 WM Keck Observatory 59 Subaru Telescope 56 Jupiter moon Io 56 NASA Infrared Telescope 55 Mauna Kea Hawaii 55 Keck telescope 55 Flowers Digital Cameras 54 Mauna Kea 54 Barking Sands 53 lava tubes 53 GALEX 53 basalt rock 53 gaseous planet 52 undersea volcanoes 52 Kilauea volcano 51 Olympus Mons 51 Pu'u 51 Exoplanets 51 Kaho'olawe 51 Na Pali Coast 51 Pan STARRS 51 Omega Centauri 51 easternmost tip 51 Molokini 50 extinct volcanoes 50 coral atoll 50 Thirty Meter Telescope 50 Credit NASA JPL 50 nicknamed Xena 50 gaseous planets 50 Makapuu 50 Lava flows 50 astronomical observatory 50 Epsilon Eridani 50 Kilauea Volcano 49 volcanic crater 49 Russia Kamchatka Peninsula 49 Paranal 49 volcanically active 49 Haumea 49 laser altimeter 49 Heliospheric Observatory SOHO 49 Kitt Peak 49 infrared telescope 49 Exoplanet 49 Kepler #b 49 Capricornus 49 Ni'ihau 48 volcanic cone 48 Kealakekua Bay 48 ancient petroglyphs 48 Palomar Observatory 48 Kuiper Belt objects 48 Earthlike 48 National Astronomical Observatory 48 underwater volcanoes 48 Observatory telescope 48 Comet Lulin 48 Lunar eclipse 48 Lick Observatory 48 Kipahulu 48 extinct volcano 48 Rescuers scoured 48 volcanic peaks 48 Earth ionosphere 48 Pleiades star 48 icy moons 48 Ryukyu Islands 48 Oort Cloud 48 Saturn magnetosphere 48 Chicxulub crater 48 meteor crater 48 TU# [002] 47 JPL manages 47 photosphere 47 Earthquake shakes 47 Cape Romano 47 Astrophysics Laboratory 47 Poipu Beach 47 geologically active 47 Herschel Space 47 planet Uranus 47 CoRoT 7b 47 Amateur Astronomers 47 asteroids comets 47 Marquesas Islands 47 Heiau 47 hydrothermal vent 47 lava tube 47 Planetary Science Institute 47 Valles Marineris 47 galaxy NGC 47 ray Space Telescope 47 Gemini Observatory 47 seamount 47 hundred thousandth 47 Nankai Trough 47 Haleakala