Related by context. Frequent words. (Click for all words.) 50 Iowa 49 credit NASA JPL 48 Ames Laboratory 48 NASA JPL Caltech 48 Credit NASA JPL 47 NASA Cassini 47 Steffen Schmidt 46 Ames Ia 45 Clyde Tombaugh 45 Newswise Researchers 44 Commander Peggy Whitson 43 IOWA CITY IA 43 National Optical Astronomy 43 David Redlawsk 43 Planetary Laboratory 41 Editorial Roundup 41 STScI 41 astrophysicist 41 Gurnett 41 Bottke 41 Lowell Observatory 41 astronomer 40 Ames IA 40 NASA Stardust spacecraft 40 Ames 40 NASA JPL 40 oceanic sciences 39 Jack Dahm 39 Lamoni 39 Galaxy Evolution 39 Thermal Emission Imaging 39 Governor Tom Vilsack 39 Ames Iowa 39 NASA Chandra 39 NASA Kepler 39 Nebraska 39 IOWA CITY Iowa 39 planetary geologist 38 AMES Iowa Iowa 38 Sen. Joe Bolkcom 38 Keck telescope 38 Smithsonian Astrophysical Observatory 38 planetary scientist 38 Spitzer Space Telescope 38 Winterset Iowa 38 CfA 38 auroras 38 infrared mapping spectrometer 38 NASA Cassini spacecraft 38 Yoichiro Nambu 38 JPL manages 38 Astrophysicists 38 Planetary Science Institute 38 Wisconsin 38 Keck Observatory 38 NASA GSFC 38 Very Large Array 38 Cedar Falls 38 THEMIS 38 David Yepsen 38 Great Ape Trust 37 Coach Todd Lickliter 37 SIRTF 37 interplanetary spacecraft 37 Nasa Jet Propulsion 37 Boeyink 37 Lunar Prospector 37 NASA Astrobiology Institute 37 Davenport 37 Messenger spacecraft 37 New Hampshire 37 Dordt College 37 AMES 37 IOWA CITY 37 Lisa Koll 37 EDUCATION Bachelor 37 Cassini imaging 37 Mike Humpal 37 Astrobiology 37 Cassini scientist 37 CloudSat 37 LINEAR 37 President Gregory Geoffroy 37 Niels Bohr Institute 37 Technology Caltech 36 Wisconsin LaCrosse 36 CalTech 36 Abe Satterfield 36 Titan Saturn 36 Byrd Polar 36 Cosmology 36 preseason WNIT 36 A'Hearn 36 National Astronomical Observatory 36 Planetary Sciences 36 Heather Ezell 36 Stardust NExT 36 WM Keck 36 Santa Barbara UCSB 36 IceCube 36 Meteor Shower