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	Dr. Robert Goddard - NASA The Goddard Space Flight Center was named in honor of Dr. Robert Goddard, a pioneer in rocket development. Dr. Goddard received patents for a multi-stage rocket and liquid propellants in 1914 and published a paper describing how to reach extreme altitudes six years later. That paper, "A Method of Reaching Extreme Altitudes," detailed methods for raising weather-recording instruments higher than what could be achieved by balloons and explained the mathematical theories of rocket propulsion... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Moon; Where -- Goddard Space Flight Center (GSFC) Downloads: 32 Average rating: (1 review)
	RBSP Spacecraft Artist rendition of RBSP spacecraft.
	MMS Spacecraft Artist rendition of MMS spacecraft.
	SDO Witnesses X1.4 Class Solar Flare An X1.4 class flare erupted from the sun, peaking at 7:01 AM ET on September 22. The flare came from sunspot N15E88, which is just moving into view as the sun rotates. This flare has caused elevated proton levels on the East (left) side of the sun. Associated with this flare, there was a significant CME that began around 7:24 AM ET. The image taken by the Solar Dynamics Observatory, is shown in multiple wavelengths of light simultaneously (211, 193, 171 angstrom)...
	Six CMEs in 24 Hours The sun let loose with at least six coronal mass ejections (CMEs) -- solar phenomena that can send solar particles into space and affect electronic systems in satellites -- from 7 PM ET on September 18, 2011 until 1 PM on September 19. The ejections appear to come from points scattered over the surface of the sun. Two CME's dissipated quickly, but four continue to spread outward from the sun. NASA models suggest that the leading edge of one CME will pass by Earth at around 5 PM ET on Sep 21, at ... Downloads: 2
	Hinode Observes Annular Solar Eclipse On January 4, the Hinode satellite captured these breathtaking images of an annular solar eclipse. An annular eclipse occurs when the moon, slightly more distant from Earth than on average, moves directly between Earth and the sun, thus appearing slightly smaller to observers' eyes; the effect is a bright ring, or annulus of sunlight, around the silhouette of the moon. Hinode, a Japanese mission in partnership with NASA, NAOJ, STFC, ESA, and NSC, currently in Earth orbit, is studying the Sun to ... Downloads: 8
	Arching Solar Prominence of August 25, 2010 NASA's STEREO spacecraft watched as an eruptive prominence rose up and arched out in a horseshoe shape far above the Sun's surface (Aug. 25, 2010). The image shows the action in an extreme UV wavelength as an eruptive prominence churns, then rises up, arches out, and finally breaks apart and dissipates above the solar surface. Prominences are clouds of relatively cool gases suspended in the Sun's hot corona by magnetic fields that sometimes break loose to create these dramatic eruptions... Downloads: 2
	FASTSat Spacecraft Artist rendition of FASTSat spacecraft Downloads: 1
	STEREO Spacecraft Artist rendition of STEREO spacecraft. Downloads: 1
	CME Accompanies MSL Launch At approximately the same time as the Mars Science Laboratory (MSL) launch on November 26, 2011, a solar explosion hurled a coronal mass ejection (CME) toward Earth and the Red Planet, as seen in this image captured by the Solar and Heliospheric Observatory. Credit: SOHO › Link to associated news item Downloads: 36
	Two Different Launches on Nov. 26, 2011 At approximately the same time as the Mars Science Laboratory (MSL) launch on November 26, 2011, shown here on the right, a solar explosion hurled a coronal mass ejection (CME) toward Earth and the Red Planet, as seen in the image on the left captured by the Solar and Heliospheric Observatory. Credit: SOHO Downloads: 34
	SOHO Pick of the Week -- 500 In early December, the Solar and Heliospheric Observatory's (SOHO) online "Pick of the Week" reached an impressive milestone: its 500th edition. This is an incredibly popular feature, which highlights one video or image of the sun each week. Featured here are solar images taken from November 22-28, 2011. The Sun produced about a dozen coronal mass ejections (CMEs) in eight days and it did seem like it was working overtime... Downloads: 62
	Cassini's View of Saturn - NASA This composite image shows how the Cassini spacecraft's cameras see Saturn with arrival still 20 months away. The planet is 285 million kilometers (177 million miles) away from the spacecraft, nearly twice the distance between the Sun and Earth. Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Cassini; What -- Saturn; What -- Sun; What -- Earth Downloads: 11
	Mariner 4 Mariner 4 was the fourth in a series of spacecraft used for planetary exploration in a flyby mode and represented the first successful flyby of the planet Mars, returning the first pictures of the martian surface. It was designed to conduct closeup scientific observations of Mars and to transmit these observations to earth. Other mission objectives were to perform field and particle measurements in interplanetary space in the vicinity of Mars and to provide experience in and knowledge of the eng... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Mariner 4; What -- Mars; What -- Earth Downloads: 7
	Approaching Jupiter This is the original Voyager 'Blue Movie' (so named because it was built from Blue filter images). It records Voyager 1's approach during a period of over 60 Jupiter days. Notice the difference in speed and direction of the various zones of the atmosphere. The interaction of the atmospheric clouds and storms shows how dynamic the Jovian atmosphere is. As Voyager 1 approached Jupiter in 1979, it took images of the planet at regular intervals... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Voyager 1; What -- Jupiter; Where -- Jet Propulsion Laboratory (JPL) Downloads: 28
	Venus - Magellan - NASA Magellan radar image of the Venera 10 landing site on Venus. The exact coordinates of the Venera 10 lander site are not known, but the estimate is centered at 15.42N,291.51E, near the southeastern edge of Beta Regio which is also the center of this image. The Venera lander panorama shows Venera 10 landed on a plain (the dark region) and not the brighter tessera. This image is about 600 km across and north is up... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Magellan; What -- Venera 10; What -- Venus Downloads: 15
	The Surface of Venus from the Venera 10 Lander Venera 10 Lander image of the surface of Venus at about 16 N, 291 E. The Lander touched down at 5:17 UT on 25 October 1975 and returned this image during the 65 minutes of operation on the surface. The sun was near zenith during this time, the lighting was about what would be seen on Earth on an overcast summer day. The objects at the bottom of the image are parts of the spacecraft. The image shows flat slabs of rock, partly covered by fine-grained material, not unlike a volcanic area on Earth... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Venera 10; What -- Venus; What -- Sun; What -- Earth Downloads: 21
	Global Mosaic of Mars Centered on Valles Marineris Global mosaic of 102 Viking 1 Orbiter images of Mars taken on orbit 1,334, 22 February 1980. The images are projected into point perspective, representing what a viewer would see from a spacecraft at an altitude of 2,500 km. At center is Valles Marineris, over 3000 km long and up to 8 km deep. Note the channels running up (north) from the central and eastern portions of Valles Marineris to the dark area, Acidalic Planitia, at upper right... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Viking 1 Orbiter; What -- Mars Downloads: 9
	The Moon from Galileo's Perspective During its flight, the Galileo spacecraft returned images of the Moon. The Galileo spacecraft took these images on December 7, 1992 on its way to explore the Jupiter system in 1995-97. The distinct bright ray crater at the bottom of the image is the Tycho impact basin. The dark areas are lava rock filled impact basins: Oceanus Procellarum (on the left), Mare Imbrium (center left), Mare Serenitatis and Mare Tranquillitatis (center), and Mare Crisium (near the right edge)... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Galileo; What -- Moon; What -- Jupiter; What -- Crater; Where -- Jet Propulsion Laboratory (JPL) Downloads: 8
	Close-Up of Sol 24 Sunset This is a close-up of the sunset on Sol 24 as seen by the Imager for Mars Pathfinder. The red sky in the background and the blue around the Sun are approximately as they would appear to the human eye. The color of the Sun itself is not correct -- the Sun was overexposed in each of the 3 color images that were used to make this picture. The true color of the Sun itself may be near white or slightly bluish... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Imager for Mars Pathfinder; What -- Mars; What -- Sun; What -- Discovery; Where -- Jet Propulsion Laboratory (JPL); Where -- Washington; Where -- California; Where -- Arizona Downloads: 7
	Surveyor 5 Footpad - NASA This Surveyor 5 image shows its footpad resting on the lunar soil. The trench at right was formed by the footpad sliding during landing. Surveyor 5 landed on the Moon on Sept. 11, 1967 at 1.41 N, 23.18E in Mare Tranquillitatis. The spacecraft landed on the inside edge of a small rimless crater at an angle of about 20 degrees, explaining the sliding. The footpad is about half a meter in diameter. The purpose of the seven Surveyor missions (five of which were successful) were to land safely on the... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Surveyor 5; What -- Moon; What -- Crater Downloads: 11
	Artist's Concept of Voyager - NASA Artist's concept of Voyager in flight. Image Credit: NASA/JPL Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Voyager Downloads: 8
	Mariner 2 - NASA Mariner 2 was the world's first successful interplanetary spacecraft. Launched August 27, 1962, on an Atlas-Agena rocket, Mariner 2 passed within about 34,000 kilometers (21,000 miles) of Venus, sending back valuable new information about interplanetary space and the Venusian atmosphere. Mariner 2 recorded the temperature at Venus for the first time, revealing the planet's very hot atmosphere of about 500 degrees Celsius (900 degrees Fahrenheit)... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Mariner 2; What -- Atlas; What -- Agena; What -- Venus Downloads: 5
	Luna 17 Luna 17 continued the spate of successes in Soviet lunar exploration begun by Luna 16 and Zond 8. Luna 17 carried Lunokhod 1, the first in a series of robot lunar roving vehicles whose conception had begun in the early 1960s, originally as part of the piloted lunar landing operations. This was the second attempt to land such a vehicle on the Moon after a failure in February 1969. The descent stage was equipped with two landing ramps for the "ascent stage," that is, the rover, to disembark onto t... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Luna 16; What -- Zond 8; What -- Lunokhod 1; What -- Moon; What -- Earth; What -- Spectrometer; What -- Luna 1 Downloads: 14
	Project Red Socks - NASA Project RED SOCKS was to be "the world's first useful moon rocket," proposed by the Jet Propulsion Laboratory/California Institute of Technology in October 1957. These artist's renditions show the configuration of motors and a diagram of the moon orbit. RED SOCKS was to respond to the Sputnik launch challenge with a significant technological advance over the Soviet Union instead of merely matching them with another earth-orbiting satellite... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Moon; What -- Earth; What -- Explorer 1; What -- Pioneer 4; Where -- Jet Propulsion Laboratory (JPL); Where -- Washington Downloads: 19
	Pathfinder Panorama - NASA This is a more recent 'geometrically improved, color enhanced' version of the 360-degree 'Gallery Pan', the first contiguous, uniform panorama taken by the Imager for Mars (IMP) over the course of Sols 8, 9, and 10. Different regions were imaged at different times over the three Martian days to acquire consistent lighting and shadow conditions for all areas of the panorama. In this version of the panorama, much of the discontinuity that was due to parallax has been corrected, particularly along ... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Imager; What -- Mars; What -- STEREO; What -- Spectrometer; What -- Earth; What -- Discovery; Where -- Jet Propulsion Laboratory (JPL); Where -- Washington; Where -- California; Where -- Arizona Downloads: 7
	Huygens Descent - NASA An artist's impression of the European Huygens Probe descending on Saturn's largest moon Titan. For more images related to the mission, visit the Cassini Multimedia Gallery. Image Credit: NASA/European Space Agency Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Huygens Probe; What -- Moon; What -- Titan; What -- Cassini Downloads: 5
	Candy Stripes - NASA This strongly enhanced false color view is a departure from the familiar bluish north and golden south seen in natural color Cassini spacecraft images, but the contrast between regions north and south of the ring shadows is here more readily apparent. The northern region is marked by a multitude of bright, patchy clouds. The region south of the ring shadows contains the bright equatorial band seen in many monochrome Cassini views taken at infrared wavelengths (see Three Views of Saturn [ http://... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Cassini; What -- Saturn; What -- Huygens Probe; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Washington Downloads: 7
	Pathfinder Launch - NASA A Delta rocket carrying Mars Pathfinder and the Sojourner Rover lifts off from Kennedy Space Center on Dec. 4, 1996. Image Credit: NASA Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Mars; Where -- Kennedy Space Center (KSC) Downloads: 9
	Asteroid Gaspra - NASA This picture of asteroid 951 Gaspra is a mosaic of two images taken by the Galileo spacecraft from a range of 5300 kilometers, some 10 minutes before closest approach on October 29, 1991. The Sun is shining from the right; phase angle is 500. The resolution, about 54 meters/pixel, is the highest for the Gaspra encounter and is about three times better than that in the view released in November 1991... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Galileo; What -- Sun; What -- Crater; What -- Mars; What -- Moon; What -- Jupiter; Where -- Jet Propulsion Laboratory (JPL) Downloads: 8
	Cold Hole Over Jupiter - NASA An intriguing polar vortex on Jupiter is providing scientists with a 'natural laboratory' to study the phenomenon that also affects Earth. Scientists may be able to study models of vortex phenomena on Jupiter without interference found on Earth. Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Polar; What -- Jupiter; What -- Earth Downloads: 8
	Spitzer Launch The Spitzer Space Telescope - known at launch as the Space Infrared Telescope Facility - launches from Cape Canaveral Air Force Station in Florida on Monday, Aug. 25, 2003, at 1:35 a.m. EDT (Sunday, August 24, at 10:35 p.m. PDT). Image Credit: NASA Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Spitzer Space Telescope; What -- Space Infrared Telescope Facility; Where -- Florida Downloads: 6
	Scientific Sunset Sunset on Mars catches NASA's proposed Mars Science Laboratory in the foreground in this artist's concept. The mission is under development for launch in 2009 and a precision landing on Mars in 2010. Once on the ground, the Mars Science Laboratory would analyze dozens of samples scooped up from the soil and cored from rocks as it explores with greater range than any previous Mars rover. It would investigate the past or present ability of Mars to support life... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Mars; Where -- Jet Propulsion Laboratory (JPL) Downloads: 7
	Voyager's Ocean Planet This picture of the Earth and Moon in a single frame, the first of its kind ever taken by a spacecraft, was recorded September 18, 1977, but NASAs Voyager 1 when it was 7.25 million miles (11.66 million kilometers) from Earth. The moon is at the top of the picture and beyond the Earth as viewed by Voyager. In the picture are eastern Asia, the western Pacific Ocean and part of the Arctic. Voyager 1 was directly above Mt... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Earth; What -- Moon; What -- Voyager 1; What -- Voyager 2; What -- Voyager; Where -- Pacific Ocean; Where -- Jet Propulsion Laboratory (JPL) Downloads: 20
	Eclipsed Earth Here is what the Earth looks like during a solar eclipse. The shadow of the Moon can be seen darkening part of Earth. This shadow moves across the Earth at nearly 2,000 kilometers per hour. Only observers near the center of the dark circle see a total solar eclipse - others see a partial eclipse where only part of the Sun appears blocked by the Moon. This spectacular picture of the Aug. 11, 1999 solar eclipse was one of the last ever taken from the Mir space station... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Earth; What -- Moon; What -- Sun; What -- Russian Mir Space Station Downloads: 27
	Coronal Loops - NASA Extending above the photosphere or visible surface of the Sun , the faint, tenuous solar corona can't be easily seen from Earth, but it is measured to be hundreds of times hotter than the photosphere itself. What makes the solar corona so hot? Astronomers have long sought the source of the corona's heat in magnetic fields which loft monstrous loops of solar plasma above the photosphere. Still, new and dramatically detailed observations of coronal loops from the orbiting TRACE satellite are now p... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Sun; What -- Earth; What -- TRACE Downloads: 14
	Triton - Detail of Dark and Light Material Voyager 2 acquired this black and white image of Triton, Neptune's largest satellite, during the night of Aug. 24-25, 1989. Triton's limb cuts obliquely across the middle of the image. The field of view is about 1,000 km (600 miles) across. Three irregular dark areas, surrounded by brighter material, dominate the image. Low-lying material with intermediate albedo occupies the central area, and fresh craters occur along the right margin... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Voyager 2; What -- Voyager; Where -- Triton; Where -- Jet Propulsion Laboratory (JPL) Downloads: 7
	Io Flyby An artist's impression of the Galileo orbiter flying past Jupiter's volcanic moon Io. Image Credit: NASA Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Galileo; What -- Moon; What -- Io Downloads: 6
	High Resolution View of Dactyl This image is the most detailed picture of the recently discovered natural satellite of asteroid 243 Ida taken by the Galileo Solid-State Imaging camera during its encounter with the asteroid on August 28, 1993. Shuttered through the camera's broadband clear filter as part of a 30-frame mosaic designed to image the asteroid itself, this frame fortuitously captured the previously unknown moon at a range of about 3,900 kilometers (2,400 miles), just over 4 minutes before the spacecraft's closest a... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Galileo; What -- Moon; What -- Crater; What -- Earth; What -- Jupiter; Where -- Jet Propulsion Laboratory (JPL) Downloads: 9
	High-Resolution MOC Image of Phobos - NASA This image of Phobos, the inner and larger of the two moons of Mars, was taken by the Mars Global Surveyor on August 19, 1998. This image shows a close-up of the largest crater on Phobos, Stickney, 10 kilometers (6 miles) in diameter. Individual boulders are visible on the near rim of the crater, and are presumed to be ejecta blocks from the impact that formed Stickney. Some of these boulders are enormous - more than 50 meters (160 feet) across... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Mars Global Surveyor Orbiter (MGS); What -- Surveyor; What -- Crater; What -- Thermal Emission Spectrometer (Mini-TES); What -- Spectrometer; What -- TES; Where -- California; Where -- Arizona; Where -- Jet Propulsion Laboratory (JPL); Where -- Denver Downloads: 6
	Distant Saturn Saturn appears serene and majestic in the first color composite made of images taken by NASA's Cassini spacecraft on its approach to the ringed planet, with arrival still 20 months away. The planet was 285 million kilometers (177 million miles) away from the spacecraft, nearly twice the distance between the Sun and Earth, when Cassini took images of it in various filters as an engineering test on Oct... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Saturn; What -- Cassini; What -- Sun; What -- Earth; What -- Voyager 2; What -- Voyager; What -- Titan; What -- Moon; What -- Huygens Probe; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Washington Downloads: 8
	First U.S. Image of the Moon Ranger 7 took this image, the first picture of the Moon by a U.S. spacecraft, on July 31, 1964 at 13:09 UT (9:09 AM EDT) about 17 minutes before impacting the lunar surface. The area photographed is centered at 13 S, 10 W and covers about 360 km from top to bottom. The large crater at center right is the 108 km diameter Alphonsus. Above it is Ptolemaeus and below it Arzachel. The terminator is at the bottom right corner... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Ranger 7; What -- Moon; What -- Crater; What -- Earth Downloads: 14
	Cassini's Farewell to Jupiter - NASA On January 15, 2001, 17 days after it passed its closest approach to Jupiter, NASA's Cassini spacecraft looked back to see the giant planet as a thinning crescent. This image is a color mosaic from that day, shot from a distance of 18.3 million kilometers (11.4 million miles). The smallest visible features are roughly 110 kilometers (70 miles) across. The solar phase angle, the angle from the spacecraft to the planet to the Sun, is 120 degrees... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Jupiter; What -- Cassini; What -- Sun; What -- Io; What -- Saturn; Where -- Arizona Downloads: 7
	Spitzer Space Telescope - NASA Artist's concept of the Spitzer Space Telescope. Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Spitzer Space Telescope Downloads: 6
	Mars Reconnaissance Orbiter at Martian South Pole - NASA NASA's Mars Reconnaissance Orbiter passes over the planet's south polar region in this artist's concept illustration. NASA plans to launch this multipurpose spacecraft in August 2005 to advance our understanding of Mars through detailed observation, to examine potential landing sites for future surface missions and to provide a high-data-rate communications relay for those missions. The orbiter's shallow radar experiment, one of six science instruments on board, is designed to probe the internal... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Mars; What -- Polar Downloads: 9
	Luna 11 Luna 11 was launched towards the Moon from an earth-orbiting platform and entered lunar orbit on August 28, 1966. The objectives of the mission included the study of: (1) lunar gamma- and X-ray emissions in order to determine the Moon's chemical composition; (2) lunar gravitational anomalies; (3) the concentration of meteorite streams near the Moon; and, (4) the intensity of hard corpuscular radiation near the Moon... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Luna 11; What -- Moon; What -- Earth Downloads: 7
	Venera 15 - NASA Venera 15 and Venera 16 were a pair of dedicated radar mappers designed to extend the studies begun by the American Pioneer Venus Orbiter in constructing a detailed map of the surface down to a resolution of about 1 to 2 kilometers. For these missions, Soviet engineers lengthened the central bus of the earlier Veneras (by 1 meter), installed much larger solar batteries, and attached a large side-looking radar antenna in place of the descent lander module on the earlier spacecraft... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Venera 15; What -- Radar Mapper; What -- Pioneer Venus Orbiter; What -- Venus; What -- Polar Downloads: 9
	Bright Moon in Darkness - NASA In the dim light of the outer solar system, Cassini gazed back at Saturn's brightest gem -- the moon Enceladus. The icy little world presents only a slim crescent in this natural color view. Cassini has now matched the best spatial resolution on Enceladus achieved by NASA's Voyager spacecraft, and will soon have excellent coverage of the moon (at more than 10 times the resolution in this image), following a flyby planned for February 17... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Cassini; What -- Moon; What -- Enceladus; What -- Voyager; What -- Sun; What -- Huygens Probe; Where -- Jet Propulsion Laboratory (JPL); Where -- California; Where -- Washington Downloads: 6
	Red Sea Dust Storm - NASA A thick snake of tan dust slithers across Egypt, Saudi Arabia, and the Red Sea in this dramatic true-color image acquired by the Aqua MODIS instrument on May 13, 2005. The dust is so thick that it is completely opaque for well over 700 miles across its south-moving front, from the border of Iraq, across the Arabian Desert of Saudi Arabia and Egypt, and all the way past the green ribbon of the Nile to the Libyan Desert in western Egypt. Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Aqua; Where -- Egypt; Where -- Saudi Arabia; Where -- Red Sea; Where -- Iraq Downloads: 7
	Gullies in Sirenum Terra, Mars - NASA This enhanced-color view shows gullies in an unnamed crater in the Terra Sirenum region of Mars. It is a sub-image from a larger view imaged by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter on Oct. 3, 2006. This scene is about 254 meters (about 830 feet) wide. The upper and left regions of this scene are in shadow, yet color variations are still apparent... Keywords: Solar System Exploration; Jet Propulsion Laboratory; Planets; What -- Crater; What -- Terra; What -- Mars; What -- High Resolution Imaging Science Experiment (HiRISE); Where -- Arizona Downloads: 7