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Planets and More  Missions  Images  Downloads 1 Jupiter 2 Saturn 3 Mercury 4 Venus 5 Mars 6 Our Solar System 7 Neptune 8 Uranus 9 Dwarf Planets 10 Sun 11 Earth's Moon 12 Pluto 13 Earth 14 Comets 15 Asteroids 16 Kuiper Belt & Oort Cloud 17 Beyond Our Solar System 18 Meteors & Meteorites 19 Europa 20 Titan Jupiter is rivaled only by the sun in its influence on our solar system. Saturn's stunning rings are one of the intriguing mysteries of this giant world. The sun-scorched innermost planet in an intriguing world of extremes. This dim world of intense heat and volcanic activity is Earth gone awry. Mars may have once been a wet world like Earth. Where did the water go? An overview of our local neighborhood in the Orion arm of the Milky Way galaxy. This bright blue world may hold secrets to the evolution of planets. A collision with another planet may have knocked Uranus on its side. An intriguing, relatively new class of intriguing worlds in our solar system. Our sun is a star, a huge ball of glowing gases at the heart of our solar system Our Moon stabilizes Earth's wobble and makes it more pleasant place to live. Pluto is the best known world of the vast, intriguing Kuiper Belt. Our home planet is a constantly changing world we still strive to understand. Cosmic snowballs of gas and dust that make sweeping orbits around our sun. These rocky fragments are leftovers from the beginning of our solar system. Far from the sun, these distant regions are home to comets and other mysteries. There are countless planets, solar systems and galaxies waiting to be explored. Shooting stars are actually bits of debris that fall through our atmosphere. Jupiter's icy moon Europa is slightly smaller than the Earth's Moon. Like the Earth, Europa is thought to have an iron core, a rocky mantle and a surface ocean of salty water. Titan is a moon of Saturn.  Planets and More  Missions  Images  Downloads 1 Juno 2 Voyager 2 3 Cassini 4 New Horizons 5 Ulysses 6 MESSENGER 7 Mars Science Lab 8 Dawn 9 Mariner 10 10 Pioneer 11 11 Venus Express 12 Heliophysics 13 Voyager 1 14 Pioneer 10 15 Spirit/Opportunity 16 Lunar Prospector 17 Galileo 18 2001 Mars Odyssey 19 Earth Science 20 Explorer 1 The Juno spacecraft will, for the first time, see below Jupiter's dense clouds. Voyager 1 and 2 took advantage of a rare planetary alignment to conduct a historic tour of the outer solar system and build enough velocity to eventually travel out of our solar system. Cassini has been unlocking the secrets of Saturn, its rings, moons and magnetosphere since 2004. It is currently on an extended mission. New Horizons is the first mission to explore Pluto and the Kuiper Belt. Ulysses was the first mission to survey the space environment above and below th MESSENGER is the second mission to study Mercury, our solar system's innermost planet. During a series of flybys that edged it closer to orbit insertion, the spacecraft already has revealed more of Mercury than has ever been seen before. This mission will employ an advanced rover and landing technologies on Mars. Dawn will be the first spacecraft to orbit two planetary bodies on one mission. Goals: Mariner 10 was the first spacecraft sent to study Mercury. Mariner 10 also studied Venus while using the planet's gravity to modify its speed and trajectory, enabling it to reach Mercury. Accomplishments: Mariner 10 was the only mission to... Pioneer 11 was the first mission to explore Saturn and the second spacecraft in humanity's early reconnaissance of the outer solar system. Venus Express is designed to study the atmosphere of Venus, from the surface to Heliophysics missions study the sun and its effect on the Earth and our solar system. Voyager 1 and 2 took advantage of a rare planetary alignment to conduct a historic tour of the outer solar system and build enough velocity to eventually travel out of our solar system. Pioneer 10 was the first spacecraft intended to fly by Jupiter, surviving the intense radiation that surrounds the giant planet and then on a trajectory that would take it out of the solar system. NASA's twin Mars Exploration Rovers -- named Spirit and Opportunity -- transformed our understanding of the Red Planet during several years of roving its rocky surface. Lunar Prospector was designed to provide answers to long-standing questions about the Moon, its resources, its structure and its origins. The Galileo spacecraft logged quite a few firsts during its 14-year mission to Jupiter. Among its discoveries: an intense radiation belt above Jupiter's cloud tops and evidence for water under the icy crust of Jupiter's moon Europa. Still in orbit around Mars, NASA's 2001 Mars Odyssey spacecraft has collected more than 130,000 images and continues to send information to Earth about Martian geology, climate, and mineralogy. Earth science missions are designed to study our home world from above as a whole system and aid in our understanding how the planet is changing. Goals: Explorer 1 was the first spacecraft successfully launched by the U.S. It orbited Earth every 115 minutes, 358 kilometers (220 miles) above the surface at its closest point and 2,550 kilometers (1,580 miles) at its farthest. It carried...  Planets and More  Missions  Images  Downloads 1 Asteroid Vesta in a 'Rainbow-Colored Palette' 2 Aurora Over Greenland 3 Pillars of Creation 4 Enceladus Backlit by Saturn 5 Tilted Eris 6 Neptune and Triton 7 A New Line of Stellar Evolution 8 Hartley 2 9 Two Views of Mercury 10 Ganymede: Galileo Regio 11 Cassini Closes in on Saturn's Tumbling Moon Hyperion 12 Juno Spacecraft 13 Copernicus and Tycho 14 Mars Rover Curiosity in Artist's Concept, Close-up 15 Pioneer Venus Probe 16 2011 Halloween Wallpaper 17 Enceladus Venting 18 Deep Space 1 Launch 19 Candle in the Dark 20 Opportunity Is Still Smiling Vesta appears in a splendid rainbow-colored palette in new images. This aurora arched from horizon to horizon. For over twenty years the Hubble Space Telescope has taken wonderful images. This moon is shining by the light of its planet. Specifically, a large portion o A diagram showing solar system orbits. The highly tilted orbit of Eris is in red. This dramatic view of the crescents of Neptune and Triton was taken by Voyager 2 about 3 days, 6 and one-half hours after its closest approach to Neptune in August 1989. The encounter put Voyager 2 on a course to exit our solar system. This graphic gives a summary of our best current understanding of the evolution of stars, showing their birth, middle age and eventual demise. This close-up view of comet Hartley 2 was taken by NASA's EPOXI mission during its flyby of the comet. It was captured by the spacecraft's Medium-Resolution Instrument. This composite image of Mercury's Caloris basin was created with pictures from Mariner 10 (right portion) and MESSENGER images. The surface of Ganymede displays a great variety of terrain types. In this Voyager 2 mosaic, the ancient dark area called Galileo Regio is positioned at the upper right. An unprocessed image of Saturn's moon Hyperion. The Juno spacecraft carries 29 sensors, which feed data to its instruments. This detailed close-up of the full Moon features two prominent ray craters, Copernicus (upper left) and Tycho (lower right), each with extensive ray systems of light colored debris blasted out by the crater-forming impacts. This artist concept features NASA's Mars Science Laboratory Curiosity rover. A Pioneer Venus 2 probe descends through Venus' intense atmosphere. Celebrate Halloween with this wallpaper from the Cassini mission. Cassini caught these dramatic plumes rising from Enceladus. Boeing Delta II (7326) rocket propels Deep Space 1 through the morning clouds. Saturn's rings cut across an eerie scene that is ruled by Titan's luminous crescent and globe-encircling haze, broken by the small moon Enceladus, whose icy jets are dimly visible at its south pole. Opportunity has nearly completed its three-month examination of a crater informally named "Santa Maria," but before the rover resumes its overland trek, an orbiting camera has provided a color image of Opportunity beside Santa Maria.  Planets and More  Missions  Images  Downloads 1 Solar System Lithograph Set 2 Explorers' Guide to the Solar System 3 Our Solar System Lithograph 4 Solar System Roadmap (2006) 5 Visions and Voyages for Planetary Science 2013 - 2022 6 In The Footsteps of Galileo: Observing the Moons of Jupiter 7 2010 Science Plan for NASA's Science Mission Directorate 8 Solar System Family Portrait 9 Solar System Trading Cards 10 Our Star - The Sun Lithograph 11 Pluto and Charon Lithograph 12 Earth's Moon Lithograph 13 Mars Lithograph 14 Titan Poster (2010) 15 Uranus Lithograph 16 Neptune Lithograph 17 The Girl Who Named Pluto 18 Extreme Space Facts 19 Jupiter Lithograph Most recent update: November 2009. Exploring other worlds stretches our minds and excites our imaginations. Most recent update: November 2009. NASA's plans for the exploration of the solar system over the next 30 years. This is the latest planetary science decadal study. The year 2009 has been declared the International Year of Astronomy. The 2010 Science Plan identifies the direction NASA has received from ... Our solar system is a natural laboratory -- on a grand scale ... Thirteen trading cards, available separately or as one multi-page file ... This is an updated version of the "Our Star -- The Sun" lithograph. This is an updated version of the Pluto and Charon Lithograph. Most recent update: November 2009. This is an updated version of the Mars lithograph. Allso includes educational material and activities on Saturn and its moons. This is an updated version of the Uranus lithograph. This is an updated version of the Uranus lithograph. NASA's Edward Goldstein recorded an interview with Venetia Burney Phair ... Twelve amazing space facts to share with friends. This is an updated version of the Jupiter lithograph.