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	Sediment History Preserved in Gale Crater Central Mound - NASA/JPL/MSSS This image continues the theme of things eroded, things covered up, and then exposed again. The circular feature labeled, " Partly-Exhumed Crater,"is interpreted to be an ancient impact crater that formed on the same layered rock surface into which the channel in PIA02844 was cut. This crater, like the channel in PIA02844, indicates that the layered rock was exposed to the atmosphere for some period of time before the next layer of material--the bright, almost white ridged rock that covers most ... Keywords: What -- Crater
	Crommelin Crater #2 - NASA/JPL/Malin Space Science Systems Rare tear-shaped dark dunes in this 6.4 x 7.0 km image (frame 10004) centered near 47 degrees south, 341 degrees west. Figure caption from Science Magazine Science Magazine Article Keywords: What -- Crater
	Crommelin Crater #1 - NASA/JPL/Malin Space Science Systems Dunes in etch pits and troughs in Crommelin Crater in the Oxia Palus area. This 3.2 x 3.5 km image (frame 3001) is centered near 4.1 degrees north, 5.3 degrees west. Figure caption from Science Magazine Science Magazine Article Keywords: What -- Crater
	Space Radar Image of the Yucatan Impact Crater Site - NASA Space Radar Image of the Yucatan Impact Crater Site Keywords: What -- Crater
	Summit Crater of Mauna Loa - Astronaut photograph high resolution, 1000 pixel-wide imageAstronauts obtained this detailed image of the summit caldera of Mauna Loa volcano, called Mokuaweoweo Caldera. Mauna Loa is the largest volcano on our planet—the summit elevation is 4,170 m (over 13,600 ft), but the volcano’s summit rises 9 km above the sea floor. The sharp features of the summit caldera and lava flows that drain outward from the summit are tribute to the fact that Mauna Loa is one of the Earth’s most active volcanoes... Keywords: What -- Crater
	Gullied Craters 41S - NASA/JPL/Arizona State University (Released 28 March 2002) This scene shows gullies superposed on the inner walls of four large craters. Most of these gullies appear to emanate from one or two specific layers along the inner crater's entire circumference. The presence of gullies on the equatorward facing slopes is unusual in that most gullied inner crater walls are poleward facing. It appears that there are several distinct layers from which the gullies issue forth as well as different expressions and possibly types and or ages ... Keywords: What -- Crater
	Pedestal Crater - NASA/JPL/MSSS The upper layer of the plains surrounding this impact crater have been stripped and deflated by wind. The rocky ejecta of the crater, however, protected the material beneath the ejecta blanket from such erosion. This process also gives the ejecta deposit a "raised relief" appearance. MOC image from July 6, 1998. Keywords: What -- Crater
	ACD02-0141-001 - NASA/Ames Research Center Human Robotic Study at Houghton Crater - virtual reality study from NASA Ames (FFC) Future Fight Central simulator tower L-R: Dr Geoffrey Briggs; Jen Jasper (seated); Dr Jan Akins and Mr. Tony Gross, Ames Keywords: What -- Crater Downloads: 3
	Daedalia Lava Flow - NASA/JPL/MSSS The ridged surface in the lower half of this image is that of a large lava flow in Daedalia Planum, southwest of the Arsia Mons volcano. The flow was stopped here by a buried crater rim (topographic high in the upper half of the image). MOC image taken June 5, 1999. Keywords: What -- Crater Downloads: 1
	Canyons and Mesas of Aureum Chaos - NASA/JPL/Arizona State University (Released 17 June 2002) This image contains a portion of Aureum Chaos located just south of the Martian equator. This fractured landscape contains canyons and mesas with two large impact craters in the upper left. The largest crater is older than the one above it. This is readily evident because a landslide deposit created by the smaller crater's impact is seen on the larger crater's floor. The overall scene has a rather muted appearance due to mantling by dust... Keywords: What -- Crater Downloads: 1
	Ash from Grimsvotn Volcano across Vatnajokull Ice Cap - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC As fall marches toward winter in the Northern Hemisphere, Iceland’s rugged terrain casts long shadows back on itself, exaggerating the topography of the island’s snow-covered mountains, particularly along the eastern coast. On the northeastern portion of the island’s largest ice cap—Vatnajokull—what appears to be another of the season’s long shadows is actually a layer of ash from the recent eruption of the sub-glacial volcano that lies beneath the thick ice.The GrimsvÃ¶Volcano and... Keywords: What -- Crater
	Mount Egon Erupts - NASA image by Jesse Allen, Earth Observatory Team, using data provided by the Shortly after 12:30 p.m. local time, on September 4, 2004, a large cloud of ash and smoke erupted from Mount Egon on the Indonesian island of Flores. When the Moderate Resolution Imaging Spectroradiometer (MODIS) flew over on NASA’s Aqua satellite a little over an hour later, the light gray cloud straddled the island. The ash plume rose up to 3,000 meters above the volcano’s crater. As of Monday, September 6, up to 2,100 people had been evacuated from villages around the volcano, as the moun... Keywords: What -- Crater
	Ash from Grimsvotn Volcano on Iceland's Vatnajokull - Image courtesy Jacques Descloitres, As fall marches toward winter in the Northern Hemisphere, Iceland’s rugged terrain casts long shadows back on itself, exaggerating the topography of the island's snow-covered mountains, particularly along the eastern coast. On the northeastern portion of the island’s largest ice cap—Vatnajokull—what appears to be another of the season’s long shadows is actually a layer of ash from the recent eruption of the sub-glacial volcano that lies beneath the thick ice.The Grimsvötn Volcano and ... Keywords: What -- Crater
	Eruption of Klyuchevskaya Volcano - NASA image courtesy the Eruptions at the Klyuchevskaya volcano on Russia’s Kamchatka Peninsula became more violent on March 24, 2005. The Kamchatkan Volcanic Eruptions Response Team boosted the alert level on the volcano to red, the highest alert reserved for major explosive eruptions, after Klyuchevskaya began to eject clouds of ash and steam as high as 10 kilometers (32,800 feet) above sea level. Seismic activity around the volcano has increased to match Klyuchevskaya’s continuous eruptions.This image, acquired b... Keywords: What -- Crater
	Mount St. Helens - Image copyright After over a decade of silence, Mount St. Helens has started to rumble. Following a week of threatening earthquakes, the volcano belched forth a plume of ash and steam on October 1, 2004. Hot rock pushed to the surface, vaporizing the mountain glaciers into steam. The earthquakes continued over the course of the following three days accompanied by another small steam eruption.On October 4, a second cloud of steam billowed from the mountain for about 40 minutes starting at 9:43 a.m., local time... Keywords: What -- Crater
	Sheveluch Volcano Erupts - NASA image courtesy Jeff Schmaltz, On October 12, 2004, a plume of ash streamed to the southwest from the Sheveluch Volcano on Russia’s Kamchatka Peninsula. The ash could be erupting from the volcano, or it could be old ash, resuspended on the wind, but without ground confirmation, it is impossible to tell. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite, which acquired this image, did not detect a thermal emission associated with an eruption, but that does not necessarily mean that the vol... Keywords: What -- Crater
	Eruption of Klyuchevskaya Volcano - NASA image courtesy the Eruptions at the Klyuchevskaya Volcano on Russiaï¿½s Kamchatka Peninsula became more violent on March 24, 2005. The Kamchatkan Volcanic Eruptions Response Team boosted the alert level on the volcano to red (its highest alert, reserved for major explosive eruptions) after Klyuchevskaya began to eject clouds of ash and steam as high as 10 kilometers (32,800 feet) above sea level. Seismic activity around the volcano has increased to match Klyuchevskayaï¿½s continuous eruptions.This image, acq... Keywords: What -- Crater
	Summit Crater of Mauna Loa - Astronaut photograph high resolution, 1000 pixel-wide imageAstronauts obtained this detailed image of the summit caldera of Mauna Loa volcano, called Mokuaweoweo Caldera. Mauna Loa is the largest volcano on our planet—the summit elevation is 4,170 m (over 13,600 ft), but the volcano’s summit rises 9 km above the sea floor. The sharp features of the summit caldera and lava flows that drain outward from the summit are tribute to the fact that Mauna Loa is one of the Earth’s most active volcanoes... Keywords: What -- Crater
	Mount Egon Erupts - NASA image courtesy Jesse Allen, based on data from the Shortly after 12:30 p.m. local time, on September 4, 2004, a large cloud of ash and smoke erupted from Mount Egon on the Indonesian island of Flores. When the Moderate Resolution Imaging Spectroradiometer (MODIS) flew over on NASA’s Aqua satellite a little over an hour later, the light gray cloud straddled the island. The ash plume rose up to 3,000 meters above the volcano’s crater. As of Monday, September 6, up to 2,100 people had been evacuated from villages around the volcano, as the moun... Keywords: What -- Crater
	copernicus show slidecast Keywords: lunar crater; copernicus Downloads: 42
	Hubble Reveals Huge Crater on the Surface of the Asteroid Vesta - Credit: STScI [ http://www.stsci.edu/ ] Technical facts about this news release: Back to entire collection [ http://hubblesite.org/newscenter/archive/releases/index/423/ ] Next release [ http://hubblesite.org/newscenter/archive/releases/1997/26/ ] Previous release [ http://hubblesite.org/newscenter/archive/releases/1997/28/ ] News Release Number:: STScI-1997-27a Keywords: What -- Crater; What -- Vesta
	LDEF (Flight), AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei, Tray B07 - NASA/Langley Research Center (NASA-LaRC) LDEF (Flight), AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei, Tray B07 EL-1994-00087 LDEF (Flight), AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei, Tray B07 The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the center clamp blocks of the experiment trays left flange and lower flange appear to be slightly dis... Keywords: What -- INTEGRAL; What -- Crater
	LDEF (Flight), S1002 : Investigation of Critical Surface Degradation Effects on Coating and Solar Ce - NASA/Langley Research Center (NASA-LaRC) LDEF (Flight), S1002 : Investigation of Critical Surface Degradation Effects on Coating and Solar Cells Developed in Germany, Tray E03 The flight photograph was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The capture cells of experiment A0187-02 are in the left two thirdsThe Experiment Exposure Control Canister containing experiment S1002 is the item located in the right one third section of the tray... Keywords: What -- Crater; Where -- Germany
	LDEF (Flight), AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei, Tray A10 - NASA/Langley Research Center (NASA-LaRC) LDEF (Flight), AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei, Tray A10 EL-1994-00018 LDEF (Flight), AO178 : A High-Resolution Study of Ultra-heavy Cosmic-Ray Nuclei, Tray A10 The flight photograph of the Ultra Heavy Cosmic Ray Experiment (UHCRE) was taken while the LDEF was attached to the Orbiter's RMS arm prior to berthing in the Orbiter's cargo bay. The white paint dots on the clamp blocks located at the center of the experiment trays upper and right flanges appear to be in... Keywords: What -- INTEGRAL; What -- Crater
	Space Radar of Image Aorounga Impact Crater, Chad - NASA Space Radar of Image Aorounga Impact Crater, Chad Keywords: What -- Crater; Where -- Chad
	Southern rim of Isidis Planitia basin - NASA/JPL/Arizona State University (Released 11 April 2002) The Science This image, crossing the southern rim of the Isidis Planitia basin, displays the contrasting morphologies of the relatively rough highland terrain (in the lower portion of the image) and the relatively smooth materials of the basin (at top). Upon closer viewing, the basin materials display an extensive record of cratering, including a small cluster of craters just north and west of the two prominent craters in the upper part of the image... Keywords: What -- Mars; What -- Crater
	Hadriaca Patera - NASA/JPL/Arizona State University (Released 17 May 2002) The Science Although the largest volcanoes on Mars (and the solar system) are located in the geologically young Tharsis region, there are many other martian volcanoes that display equally interesting features, such as Hadriaca Patera, shown in this image. Hadriaca Patera is located to the northeast of the Hellas Planitia impact basin in the southern hemisphere. Unlike the Tharsis volcanoes, Hadriaca Patera has very low relief, standing only about 1-2 km above the surroundi... Keywords: What -- Mars; What -- Crater
	Rim of Henry Crater - NASA/JPL/Arizona State University (Released 02 April 2002) This portion of the rim of Henry Crater has numerous dark streaks located on the slopes of the inner crater wall. These dark slope streaks have been suggested to have formed when the relatively bright dust that mantles the slopes slides downhill, either exposing a dust-free darker surface or creating a darker surface by increasing its roughness. The topography in this region appears muted, indicating the presence of regional dust mantling... Keywords: What -- Crater; What -- Terra
	Sediment History Preserved in Gale Crater Central Mound - NASA/JPL/MSSS This is a sub-frame taken from near the center of PIA02843. Like the larger image, it is oriented with north toward the lower left. This area shows the thinly-bedded lower units of the Gale Crater mound. The lower part of the mound has hundreds of thin (2-5 meters; 2-5 yards thick) beds of similar thickness and properties--in this regard, the lower units are similar to the beds observed elsewhere on Mars, such as in southwestern Candor Chasma... Keywords: What -- Crater; What -- Mars
	Spirit Takes the Helm - NASA/JPL/Cornell/USGS This animation shows Spirit driving itself through the rocky terrain of Gusev Crater on sol 118 (May 8, 2004) using its auto-navigation software. Halfway through the drive, the rover spotted a rock bigger than its wheels (25 centimeters or 9.8 inches) and drove around to the left. At the end of its traverse, Spirit encountered several more large rocks, but since they were less than half its wheel height (12 centimeters or 4.7 inches tall), it drove right over them... Keywords: What -- Spirit; What -- Crater
	Reull Valles in Approximately Natural Color - NASA Reull Valles, conspicuous southeast-trending fretted channel, dissects wall deposits of the large Hellas impact basin. Center of picture is at latitude 42 degrees S. longitude 258 degrees. Fretted channels are wide, flat-floored channels with steep walls, which may be runoff channels that have been modified and enlarged by mass wasting. Many nearby hills and mountains are surrounded by lobate debris aprons, which may have formed by slow creep of rock deposits aided by the presence of near-surfac... Keywords: What -- Crater; What -- Viking
	Reull Valles (Enhanced Color) - NASA A conspicuous fretted channel, Reull Valles, which dissects wall deposits of the large Hellas impact basin, trends southeast towards the basin floor. Center of picture is at latitude 42 degrees S., longitude 258 degrees W. Fretted channels are wide, flat-floored channels with steep walls, which may be runoff channels that have been modified and enlarged by masswasting. Many nearby hills and mountains are surrounded by lobate debris aprons, which may have formed by slow creep of rock deposits aid... Keywords: What -- Crater; What -- Viking
	Venus - Possible Remnants of a Meteoroid in Lakshmi Region - NASA This full resolution mosaiced image covers an area of approximately 100 kilometers by 120 kilometers (62 by 74 miles) and is located in the Lakshmi region of Venus at 47 degrees north latitude and 334 east longitude. Due to the dense Venusian atmosphere, primary impact craters of less than a 3 kilometer (2 mile) diameter are nonexistent. The dark circular region and associated central bright feature in this image are thought to be the remnants of a meteoroid smaller than the size necessary to cr... Keywords: What -- Venus; What -- Crater
	Iceland - Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC Iceland's icy exterior hides its steamy volcanic underpinnings. Running roughly northeast to southwest through the island country is the northern part of the vast Mid-Atlantic Ridge, the divergent boundary of the North American tectonic plate and the Eurasian plate. The two plates are diverging, essentially pulling Iceland apart, and often resulting in intense sub-glacial volcanic activity.One of Iceland's most active volcanic centers is locked beneath the 8300-km2 Vatnajvkull Glacier in southea... Keywords: What -- Crater; Where -- Iceland
	Santa Maria Volcano, Guatemala - ISS004-ESC-7999 was taken 17 February 2002 from the International Space Station using a digital camera. The image is provided by the The eruption of Santa Maria volcano in 1902 was one of the largest eruptions of the 20th century, forming a large crater on the mountain’s southwest flank. Since 1922, a lava-dome complex, Santiaguito, has been forming in the 1902 crater. Growth of the dome has produced pyroclastic flows as recently as the 2001—they can be identified in this image. The city of Quezaltenango (approximately 90,000 people in 1989) sits below the 3772 m summit... Keywords: What -- Crater; Where -- Guatemala
	Quebec - Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC Reservoir Manicouagan sits inside a 214-million-year-old impact crater in Quebec, Canada. The crater that surrounds the reservoir is almost 100 km in diameter, though it has eroded over the years due to glaciation, rain, and other erosional processes. The reservoir itself is almost 70km in circumference and surrounds the impact crater’s central uplift, which has become the island Ile Reme-Levasseur... Keywords: What -- Crater; Where -- Canada
	Martian Crater - NASA/JPL/MSSS This crater on northern Elysium Planitia is a little more than twice the diameter of the famous Meteor Crater in Arizona, U.S.A. It formed by the impact and subsequent explosion of a meteorite. Picture from MOC in July 1998. Keywords: What -- Crater; Where -- Arizona
	Ash plume rising from Shiveluch Volcano, Kamchatka Peninsula, Eastern Russia - Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC On September 17, 2002, Shiveluch Volcano, one of many on Russia’s Kamchatka Peninsula, was restless. The Moderate Resolution Imaging Spectroradiometer (MODIS) on the Terra satellite detected a heat signature from the crater (red dot) and a plume of ash and smoke. Some greenness clings to the lower elevations, while the rugged mountains are fading to brown with the advancing season. Sensor: Terra/MODIS... Keywords: What -- Crater; Where -- Russia
	Miyake-Jima Eruptions - Image courtesy Jacques Descloitres, Mount Oyama, located on the Japanese island of Miyake-Jima, continues to erupt and discharge significant quantites of sulfur dioxide gas from its summit crater. Scientists estimate the volcano is emitting sulfur dioxide at a rate of between 10,000 and 20,000 tons per day.This true-color scene was acquired during a small eruption on April 2, 2002, by the Moderate-resolution Imaging Spectroradiometer (MODIS), aboard NASA's Terra satellite... Keywords: What -- Crater; What -- Terra
	Copernicus Audio - Marleen Bryan audio for a slideshare slidecast Keywords: lunar crater; copernicus Downloads: 961
	Geological history of Crater Lake, Crater Lake national park - Diller, J. S. (Joseph Silas), b. 1850 Keywords: Crater Lake (Or.) Downloads: 160
	Building a Test Stand - NASA/Stennis Space Center (NASA-SSC) An enormous crater marks the site where the A-2 test stand was being built in 1964 at the Mississippi Test Operations. Keywords: What -- Crater; Where -- Mississippi Downloads: 1
	MC-25 Thaumasia Region - NASA Mars digital-image mosaic merged with color of the MC-25 quadrangle, Thaumasia region of Mars. In the northern part, a prominent physiographic feature, Thaumasia plateau, includes a complex array of small- and large-scale faults and ridges and ancient volcanoes. Channel systems, upturned beds, and large troughs occur in places along the southern edge of the plateau. In the southern part, the lowlands that surround the plateau include heavily cratered highland terrain and relatively smooth, low p... Keywords: What -- Mars; What -- Crater Downloads: 1
	MC-29 Eridania Region - NASA Mars digital-image mosaic merged with color of the MC-29 quadrangle, Eridania region of Mars. The quadrangle is dominated by heavily cratered highlands, with some moderately cratered plains in the central part and large ridge systems in the southern part. The west-central part is marked by a large impact crater, Kepler. Kepler is an ancient remnant of the many large impact events that occurred during the period of heavy bombardment... Keywords: What -- Mars; What -- Crater Downloads: 1
	Becquerel Crater Deposit - NASA/JPL/Arizona State University (Released 28 May 2002) The finely layered deposit in Becquerel crater, seen in the center of this THEMIS image, is slowly being eroded away by the action of windblown sand. Dark sand from a source north of the bright deposit is collecting along its northern edge, forming impressive barchan style dunes. These vaguely boomerang-shaped dunes form with their two points extending in the downwind direction, demonstrating that the winds capable of moving sand grains come from the north... Keywords: What -- Crater; What -- THEMIS Downloads: 1
	Galle Crater - NASA/JPL/Arizona State University (Released 19 June 2002) The Science This image is of part of Galle Crater, located at 51.9S, 29.5W. This image was taken far enough south and late enough into the southern hemisphere fall to catch observe water ice clouds partially obscuring the surface. The most striking aspect of the surface is the dissected layered unit to the left in the image. Other areas also appear to have layering, but they are either more obscured by clouds or are less well defined on the surface... Keywords: What -- Crater; What -- Neptune Downloads: 1
	Ma'adim Vallis From the Top - NASA/JPL This is a still from an animation showing the geography of Ma'adim Vallis, a valley or channel that enters Gusev Crater. The view of the crater is from the northwest, which is not the direction from which Spirit approached the crater as it landed. Keywords: What -- Crater; What -- Spirit Downloads: 1
	1961 #3 East Africa - Watson Kintner All rights are reserved by the University of Pennsylvania Museum of Archaeology and Anthropology (Penn Museum). Any use of the footage in productions is forbidden unless rights have been secured by contacting the Penn Museum Archives at 215-898-8304, or email photos@museum.upenn.edu. This film and all of the films in the Penn Museum collection are copyrighted by the Penn Museum, and are not in the public domain. Keywords: Kenya; Ngorongo Crater Downloads: 289 Average rating: (0 review)
	1961 #4 East Africa - Watson Kintner All rights are reserved by the University of Pennsylvania Museum of Archaeology and Anthropology (Penn Museum). Any use of the footage in productions is forbidden unless rights have been secured by contacting the Penn Museum Archives at 215-898-8304, or email photos@museum.upenn.edu. This film and all of the films in the Penn Museum collection are copyrighted by the Penn Museum, and are not in the public domain. Keywords: Kenya; Ngorongoro Crater Downloads: 227 Average rating: (0 review)
	Bright Halo Impact Crater on Ganymede - NASA his color picture of Ganymede in the region 30 S 180 W shows features as small as 6 kilometers (3.7 miles) across. Shown is a bright halo impact crater that shows the fresh material thrown out of the crater. In the background is bright grooved terrain that may be the result of shearing of the surface materials along fault planes. The dark background material is the ancient heavily cratered terrain -- the oldest material preserved on the Ganymede surface. Keywords: What -- Ganymede; What -- Crater