Related by context. Frequent words. (Click for all words.) 56 de la Recherche Scientifique 56 Space Agency 55 Research CNRS 53 Leopold Eyharts 52 CNES 51 Southern Observatory ESO 51 INRIA 50 COROT 50 Astrophysics 49 et Marie Curie 49 Space 49 Human Spaceflight 48 Earth Observation 48 NASAs 48 CNRS 48 planetary missions 47 Cassini Huygens 47 ESA astronaut 47 STScI 47 Lunar Exploration 47 Astronomical Observatory 47 Spy Satellite 47 Lunar Reconnaissance Orbiter LRO 47 Université Paris 46 Roberto Vittori 46 ESRF 46 Astrophysicist 46 Astrophysics CfA 46 Geographic Society 46 Observatory 46 TerraSAR X 45 Ocean Observing 45 Planetary Science 45 ESA 45 agency Roskosmos 45 ESTEC 45 Dordain 45 Mars# 45 Observatories 45 Commercial Spaceflight Federation 44 Weather Prediction 44 astronaut Leopold Eyharts 44 COSMO SkyMed 44 Nasa 44 interplanetary spacecraft 44 Garching Germany 44 JPL manages 44 Jet Propulsion Lab 44 Institut de 44 Meteorological Satellite 44 NASA 44 journal Astronomy 44 GMES 44 CfA 44 Organization ISRO 43 Spacelab 43 Nicolaus Copernicus 43 Ariane rocket 43 Galileo spacecraft 43 nanosatellite 43 Institut Curie 43 Earth Observations 43 observatories 43 Dryden Flight Research 43 Adaptive Optics 43 ESOC 43 EADS Astrium 43 planetary science 43 Jean Jacques Dordain 43 G Madhavan Nair 43 Gravity Recovery 43 National Astronomical Observatory 43 planetary scientist 43 LOFAR 43 G. Madhavan Nair 43 Molecular Biology Laboratory 42 France 42 HRSC 42 Tropical Rainfall Measuring 42 Arecibo Observatory 42 spacecraft orbiting 42 VIRTIS 42 European Synchrotron Radiation 42 Observing System 42 Very Large Array 42 IYA# 42 Planetary Sciences 42 Research Commissioner Janez 42 VLBI 42 Julie Payette 42 Research Organisation ISRO 42 Israeli astronaut Ilan 42 Hans Schlegel 42 lunar module pilot 42 Hayden Planetarium 42 GALILEO 42 Von Braun 42 Guiana Space 42 Euroconsult 42 Theoretical Physics 42 Universite de