POLARIZED PHOTOMICROGRAPH Credit: Marek Mís LEVISTICUM Credit: Marek Mís VOLVOX Credit: Frank Fox, www.mikro-foto.de VORTICELLA Credit: Frank Fox, www.mikro-foto.de MOUSE RETINA Credit: National Institute of General Medical Sciences (NIGMS) ASTROCYTE BRAIN CELLS Credit: Nancy Kedersha / Science Photo Library WHITE MATTER FIBERS OF BRAIN Credit: Alfred Pasieka, www.alfred-pasieka.de MICROGRAPH OF ALGAE AND MOSS Credit: Marek Mís BLUELINE SNAPPER – Andaman Sea, Thailand Credit: Georgette Douwma / Science Photo Library BIOLUMINESCENCE – Gippsland Lakes, Victoria, Australia Credit: Phil Hart FLIGHT PATH OF FIREFLIES – Outside Okayama City, Japan Credit: Tsuneaki Hiramatu MONARCH BUTTERFLIES – California, USA Credit: J L Spaulding, creative commons license SUNFLOWERS – North Dakota, USA Credit: USDA BLUEBELLS – Buckinghamshire, England Credit: Sue Vincent BLUE SKIES – Guanajuato, Mexico Credit: © Tomas Castelazo, www.tomascastelazo.com / Wikimedia Commons / CC-BY-SA-3.0 RAINBOW LANDS ON COW – New Zealand Credit: Lisa & Jeffrey Smith SUN DOGS AND HALO AROUND SETTING SUN – Iowa, USA Credit: Thomas DeHoff 22-DEGREE HALO, BROKEN – Harz, Germany Credit: Lars0001 / Wikimedia Commons LAKE REFLECTIONS – Tso Moriri Lake, India Credit: Prabhu B Doss SANDSTONE MESA WITH RAINBOW – Utah, USA Credit: David Parker / Science Photo Library RED SUNSET – Windward Islands, French Polynesia Credit: J L Spaulding, creative commons license SUNSET (LENSING) – Iowa, USA Credit: Thomas DeHoff SHADOWS OF ANTELOPE CANYON – Arizona, USA Credit: J L Spaulding, creative commons license SUN RAYS OVER IOWA – Iowa, USA Credit: Thomas DeHoff PINK AND PURPLE SUNSET – Rhode Island, USA Credit: Richard F Staples, Jr. SUNSET – China Credit: U.S. Navy photo by Cmdr. Ed Thompson LIGHTS OVER DUBLIN – Wales, UK & Dublin, Ireland Credit: Colin Legg LIGHTNING OVER ST. LAURENT RIVER – Quebec, Canada Credit: Jp Marquis LIGHTNING STRIKES – Dubai, United Arab Emirates Credit: Michael Shainblum FIREWORKS – Perth, Western Australia Credit: Colin Legg LIGHTBULBS IN X-RAY LIGHT Credit: Dr. Paula Fontaine, www.RadiantArtStudios.com SOLAR PANELS – Colorado, USA Credit: Dennis Schroeder / NREL CAR HEADLIGHTS – Belfort, France Credit: Thomas Bresson, https://www.flickr.com/people/36519414@N00 LASERS IN THE SKY – Atacama Desert, Chile Credit: ESO / Babak Tafreshi WELCOME TO THE GRID – Utah, USA Credit: NASA / Johnson Space Center AURORA BOREALIS – Alaska, USA Credit: US Air Force, Senior Airman Joshua Strang AURORA BOREALIS – Iowa, USA Credit: Stan Richard, nightskyevents.com NOCTILUCENT CLOUDS – California, USA Credit: NASA LENTICULAR CLOUDS – South Georgia Credit: Serge Ouachée WEATHER ILLUMINATED – Hurricane Isabel, Atlantic Ocean Credit: NASA / JSC / Mike Trenchard COMET HALE-BOPP – New York, USA Credit: Donald Lubowich GEMINID METEOR – Mojave Desert, USA Credit: Wally Pacholka / AstroPics.com VENUS IN TRANSIT - Leipzig, Germany Credit: Phil Hart STARDUST – California, USA Credit: Michael Shainblum THE MILKY WAY – Hawaii, USA Credit: Rogelio Bernal Andreo / DeepSkyColors.com / Ciel et Espace THE MILKY WAY – Hawaii, USA Credit: Rogelio Bernal Andreo / DeepSkyColors.com / Ciel et Espace EARTH LIGHTS FROM SPACE STATION Credit: NASA / Johnson Space Center THE THIN BLUE LINE Credit: NASA SUNRISE FROM SPACE Credit: NASA / Johnson Space Center EARTH AT NIGHT Credit: Marc Imhoff, Craig Mayhew, Robert Simmon / NASA Goddard Space Flight Center, Christopher Elvidge / NOAA, NGDC EARTH GLOBE NORTH AMERICA Credit: Reto Stöckli for the NASA GSFC Earth Observatory EARTH GLOBE ASIA Credits: Data-AVHRR, NDVI, Seawifs, MODIS, NCEP, DMSP and Sky2000 star catalog; AVHRR and Seawifs texture-Reto Stockli; Visualization-Marit Jentoft-Nils EARTH GLOBE AFRICA & EUROPE Credit: NASA COMET HALE-BOPP – 655 light seconds from Earth Credit: Dan Schechter FULL MOON – 1.25 light seconds from Earth Credit: Jean-Luc Dauvergne / Ciel Et Espace LUNAR ECLIPSE – 1.25 light seconds from Earth Credit: Akira Fujii / Ciel et Espace TOTAL SOLAR ECLIPSE – 8.3 light minutes from Earth Credit: Dan Schechter ULTRAVIOLET VIEW OF SUN – 8.3 light minutes from Earth Credit: NASA / SDO SUNSET ON MARS – 12.7 light minutes from Earth Credit: NASA / JPL / Texas A&M / Cornell RHO OPHIUCHI AND ANTARES – 520 light years from Earth Credit: ANGLO / Australian Observatory / David Malin HELIX NEBULA – 650 light years from Earth Credit: ESO ORION NEBULA – 1,500 light years from Earth Credit: ESO / J. Emerson / VISTA. Acknowledgment: Cambridge Astronomical Survey Unit EAGLE NEBULA – 7,000 light years from Earth Credit: T.A. Rector / Univ. of Alaska Anchorage & B.A. Wolpa (NOAO / AURA / NSF) CASSIOPEIA A – 11,000 Light Years from Earth Credit: NASA / CXC / SAO CENTER OF MILKY WAY – 26,000 Light Years from Earth Credit: X-ray: NASA / CXC / Umass / D. Wang et al.; Optical: NASA / ESA / STScI.; IR: NASA / JPL-Caltech /S.Stolovy NGC 602 – 180,000 light years from Earth Credit: X-ray: NASA / CXC / Univ. Potsdam / L. Oskinova et al.; Optical: NASA / STScI; Infrared: NASA / JPL-Caltech ANTENNAE GALAXIES – 62 million light years from Earth Credit: NASA / ESA / Hubble Heritage Team (STSCI / AURA) BULLET CLUSTER – 3.8 billion light years from Earth Credit: X-ray: M.Markevitch for NASA/CXC/CfA; visible light by D. Clowe for NASA/STScI; Magellan/U. Arizona & ESO COSMIC MICROWAVE BACKGROUND – 13.7 billion light years from Earth Credit: NASA/WMAP Science Team