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NASA Search allows you to search almost 2 million documents on ALL National Aeronautics and Space Administration websites with one entry. Enter words or phrases, and try to be specific (you will get many results). Searching NASA with Google shows that NASA has over 20 million web pages and other online files, spread across hundreds of subdomains (plus pages at non-NASA.gov domains). This makes finding things difficult. NASA changes their URLs and search forms far too often without link redirects. Making things worse, NASA has created new unified homesites for their Centers. Thus Google shows 11,600 results at "nasa.gov/centers/johnson". But Google still reports 369,000 results at "jsc.nasa.gov". NASA Near Real Time Data ImagesInteractive Weather Satellite ImageryMODIS Image of the Day Current Solar Images SOHO Solar Images NASA Photos, NASA Imagesflickr.com/photos/nasacommonsNASA Commonsphotojournal.jpl.nasa.gov Planetary Photojournal JSC Digital Image Collection pds.jpl.nasa.gov/planets/welcome.htm many of the best images of planetary exploration nssdc.gsfc.nasa.gov/photo_gallery NSSDC Photo Gallery rsd.gsfc.nasa.gov/rsd Visualization of Remote Sensing Data, images, movies, & 3-D, mostly old Tropical Rainfall Images & Animations space.jpl.nasa.gov Solar System Simulator- views at any date from any point of observation maps.jpl.nasa.gov Planetary Maps (non-science) skyview.gsfc.nasa.gov SkyView Virtual Observatory, alternate server at skys.gsfc.nasa.gov virtualobservatory.org National Virtual Observatory (NVO), alternate server at usvao.org/ NASA Earth Sciences Imagesvisibleearth.nasa.goveol.jsc.nasa.gov The Gateway to Astronaut Photography of Earth earthobservatory.nasa.gov space news from NASA's Marshall Space Flight Center NASA Earth Scienceseospso.gsfc.nasa.gov Earth Observation Systemscience.nasa.gov/earth-science NASA Earth Science eospso.gsfc.nasa.gov Earth Observing System Project Science Office www.ghcc.msfc.nasa.gov Global Hydrology and Climate Center: studying the global water cycle thunder.msfc.nasa.gov GHRC Lightning & Atmospheric Electricity science.gsfc.nasa.gov Science at Goddard Space Flight Center atmospheres.gsfc.nasa.gov neptune.gsfc.nasa.gov Hydrospheric and Biospheric Sciences Laboratory atmospheres.gsfc.nasa.gov/climate/ NASA Earth Sciences Missionswww2.jpl.nasa.gov/srtm Shuttle Radar Topography Mission, global elevation data images - datalandsat.gsfc.nasa.gov Landsat 7: images Earth in the visible, near-infrared, short-wave eo1.gsfc.nasa.gov EO-1: tested land imaging and spacecraft technologies, LD:2000-11-21 terra.nasa.gov EOS AM-1: Terra, Earth Observing System flagship asterweb.jpl.nasa.gov ASTER: Thermal Emission & Reflection Radiometer on Terra images modis.gsfc.nasa.gov MODIS Imaging Spectroradiometer on Terra & Aqua images www.aqua.nasa.gov EOS PM: Aqua, Earth Observing System, studies Earth's water cycle sealevel.jpl.nasa.gov JPL ocean surface topography: Jason-1, LD:2001-12-07 TOPEX/Poseidon, LD:1992-08-10 oceancolor.gsfc.nasa.gov/SeaWiFS SeaWiFS trmm.gsfc.nasa.gov TRMM: Tropical Rainfall Measuring Mission aura.gsfc.nasa.gov Aura: examines the chemistry of Earth's atmosphere, LD:2004-07-15 umpgal.gsfc.nasa.gov UARS: measures ozone & compounds in the ozone layer LD:1991-xx-xx icesat.gsfc.nasa.gov ICEsat: ice sheet elevation & polar cloud data, LD:2003-01-13 www.csr.utexas.edu U of Texas-Austin Center for Space Research: GLAS, GRACE, more GLAS Geoscience Laser Altimeter System carried on ICESat GRACE 2 satellites measuring Earth's gravity field, LD:2002-03-xx NASA Earth Sciences Data, & some non-NASA data archivesearthdata.nasa.gov Earth-Sun System Data & Services PortalEarth Science Information Partners search tools gcmd.gsfc.nasa.gov Global Change Master Directory science.gsfc.nasa.gov/earth/gcdc Global Change Data Center daac.gsfc.nasa.gov Goddard Earth Sciences Data & Information disc.gsfc.nasa.gov/acdisc Atmospheric Composition Data and Information Services Center eosweb.larc.nasa.gov Langley Atmospheric Sciences DC Clouds, Aerosols, Troposphere ccmc.gsfc.nasa.gov/modelweb geophysical models podaac.jpl.nasa.gov Physical Oceanography DAAC Oceanic Processes, Air-Sea Interactions cddis.gsfc.nasa.gov Crustal Dynamics Data Information System (CDDIS) www.asf.alaska.eduAlaska Satellite Facility DAAC SAR, Sea Ice, Polar Processes, Geophysics ghrc.msfc.nasa.govGlobal Hydrology Resource Center Hydrology, Severe Weather, Convection NSIDC DAAC National Snow and Ice Data Center: Snow & Ice, Cryosphere & Climate ORNL DAAC Oak Ridge National Laboratory: biogeochemical dynamics, ecology, environment Land Processes DAAC: land processes SEDAC Socioeconomic Data & Applications Data Ctr: population, sustainability... NASA Solar & Earth-Sun Science Missionsulysses.jpl.nasa.gov Ulysses: is in a polar orbit of the sunsoho.nascom.nasa.gov Solar and Heliospheric Observatory sdo.gsfc.nasa.gov Solar Dynamics Observatory, LD:2007 heliophysicsdata.sci.gsfc.nasa.gov Goddard Heliophysics Data Portal pwg.gsfc.nasa.gov OR www-spof.gsfc.nasa.gov Polar, Wind, & Geotail Polar: multi-wavelength imaging of the aurora, LD:1996-02-24 Wind: studies the solar wind, LD:1994-11-01 Geotail: studies the tail of Earth's magnetosphere, LD:1992-07-24 sprg.ssl.berkeley.edu UCal Berkeley Space Physics Group: FAST, more FAST: studies Earth's aurora, LD:1996-08-21 pluto.space.swri.edu IMAGE: studies magnetosphere response to solar wind, LD:2000-03-25 hesperia.gsfc.nasa.gov RHESSI: studies particles & energy in solar flares, LD:2002-02-05 lasp.colorado.edu U of Colorado Lab for Atmospheric & Space Physics, SORCE, more: SORCE: measures full spectrum of incoming solar radiation, LD:2003-01-25 www.timed.jhuapl.edu TIMED: studies solar influence on air 40-110 miles up, LD:2001-12-07 www.lmsal.com Lockheed Martin Solar and Astrophysics Laboratory: TRACE, more: TRACE: studied magnetic fields and plasma on the Sun, LD:1998-04-xx NASA Solar Science Dataumbra.nascom.nasa.gov Solar Data Analysis CenterNASA Space Sciencesciences.gsfc.nasa.govscience.nasa.gov images & current news stories, overview of scientific missions einstein.stanford.edu Gravity Probe B tests Einstein's general theory, LD:2004-04-20 NASA Astronomy Missionswww.stsci.edu Space Telescope Science Institute: Hubble data & managementhubblesite.org Space Telescope Science Institute's public HubbleSite hubble.nasa.gov NASA Hubble Space Telescope archive www.spacetelescope.org ESA's Hubble Space Telescope pages www.jwst.nasa.gov Webb Space Telescope, successor to the Hubble Space Telescope www.spitzer.caltech.edu Spitzer Space Telescope, infrared www.sofia.usra.edu SOFIA: Stratospheric Observatory for Infrared Astronomy chandra.harvard.edu Chandra: X-ray Observatory cfa-www.harvard.edu Harvard-Smithsonian Center for Astrophysics: SWAS, more SWAS: Submillimeter Wave Astronomy Satellite: to study composition of interstellar gas map.gsfc.nasa.gov Microwave Anisotropy Probe: full-sky map of light from 13 billion years ago ssl.berkeley.edu UCal Berkeley Space Sciences Lab: CHIPS, more CHIPS: extreme ultraviolet spectrograph sky mapping, LD:2003-01-12 pha.jhu.edu Johns Hopkins Physics & Astronomy: FUSE fuse.pha.jhu.edu FUSE: high-resolution far ultraviolet spectroscopy, LD:1999-06-24 space.mit.edu MIT Kavli Inst. for Astrophysics and Space Research: HETE-2, more HETE-2: detects and localizes gamma-ray bursts, LD:2000-10-09 swift.gsfc.nasa.gov Swift: studies gamma-ray bursts, LD:2004-11-20 cossc.gsfc.nasa.gov Compton Gamma Ray Observatory: 1991-2000 www.srl.caltech.edu CalTech Space Radiation Lab: ACE, GALEX, more ACE: (Adv Comp Exp) studies energetic particles, LD:1997-08-25 GALEX: (Galaxy Evo Exp) maps star formation, LD:2003-04-28 kepler.nasa.gov Kepler: search for habitable planets, LD:2008-06-xx NASA Space Science Data & NASA Astronomy Data, & some non-NASA data archivesarchive.stsci.edu Hubble Space Telescope science datapds.jpl.nasa.gov Planetary Data System: digital data from planetary missions, astronomy, & labs adsabs.harvard.edu NASA Astrophysics Data Server nssdc.gsfc.nasa.gov National Space Science Data Center nssdc.gsfc.nasa.gov/astro NASA Astronomical Data Center spdf.gsfc.nasa.gov Space Physics Data Facility heasarc.gsfc.nasa.gov High Energy Astrophysics: gamma-ray & X-ray data & software Nat'l Virtual Observatory Datascope at GSFC HEASARC ftp://legacy.gsfc.nasa.gov GSFC Legacy FTP archives irsa.ipac.caltech.edu infrared and sub-millimeter astronomy scientific data sets ssc.spitzer.caltech.edu Spitzer Science Ctr: infrared telescope data archives & analysis lambda.gsfc.nasa.gov data center for Cosmic Microwave Background (CMB) research msc.caltech.edu Michelson Science Ctr, NASA Origins projects science ops & analysis service ned.ipac.caltech.edu NASA/IPAC Extragalactic Database (NED) cdsweb.u-strasbg.fr CDS Strasbourg iso.esac.esa.int ESA Infrared Space Observatory arxiv.org Astrophysics paper preprints NASA Lunar & Planetary Sciencessd.jpl.nasa.gov JPL Solar System Dynamicsastrobiology.nasa.gov study of the origin & distribution of life in the universe astrobiology.nasa.gov/nai NASA Astrobiology Institute planetquest.jpl.nasa.gov Planet Quest: NASA's search for extrasolar planets NASA Lunar & Planetary Missionssolarsystem.nasa.gov NASA solar system explorationexplorers.gsfc.nasa.gov low-cost exploration missions voyager.jpl.nasa.gov Voyager 1 & 2: continue to study the region where interstellar space begins solarsystem.nasa.gov/galileo Galileo saturn.jpl.nasa.gov Cassini-Huygens: Saturn orbiter, Titan lander mars.jpl.nasa.gov Mars exploration subdomain including: Mars Express: search for subsurface water from orbit Mars Global Surveyor: surface features, atmosphere, and magnetic properties Mars Odyssey: orbiter mapping mineralogy and morphology marsrovers.jpl.nasa.gov OR marsrovers.nasa.gov Spirit & Opportunity mpfwww.jpl.nasa.gov Mars Pathfinder jhuapl.edu Johns Hopkins U. Applied Physics Lab: MESSENGER, more messenger.jhuapl.edu MESSENGER: Mercury orbiter genesismission.jpl.nasa.gov Genesis: mission to collect solar wind deepimpact.umd.edu Deep Impact: Comet 9P/Tempel 1 stardust.jpl.nasa.gov Stardust: comet sample return mission, LD:1999-02-07 www.jpl.nasa.gov/sl9 Comet Shoemaker-Levy Collision with Jupiter leonid.arc.nasa.gov Leonid Multi-Instrument Aircraft Mission impact.arc.nasa.gov Asteroid Comet Impact Hazards Website neo.jpl.nasa.gov Near-Earth Object Program, 3D orbit viewer, research info & statistics nmp.jpl.nasa.gov/ds1/ Deep Space 1 NASA Education WebsitesNASA Office of EducationNASA Education: for Students robotics.nasa.gov Robotics Education Project pcos.gsfc.nasa.gov Physics of the Cosmos imagine.gsfc.nasa.gov Imagine The Universe! 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