Title:[1189] A gibbous Moon Caption:The Moon, Earth's satellite, shown at three-quarter phase, also known as gibbous. A dodging technique was used by astronomer Dr. Roger Lynds when taking the photo to ensure that the bright face of Moon did not overexpose next to the darker, terminator region (demarcation between the light and dark portions). Kitt Peak 2.1-meter telescope photo. Copyright: Credit:National Optical Astronomy Observatories

Title:[0286] Apollo 16 view of the Moon Caption:A Full Moon as seen from Command and Service modules during transearth coast by Apollo 16 astronauts (but not the full Moon view we see from Earth). Copyright: Credit:NASA

Title:[0303] A view from Apollo 8 Caption:This view of the Moon from the Apollo 8 spacecraft shows on the right side part the far side of the Moon, which is never visible from Earth. The very dark, almost circular feature near the top is Mare Crisium, and Mare Smythii is to its right. From Earth, Mare Smythii is barely visible on the Moon's eastern limb. Copyright: Credit:NASA

Title:[0302] Earthrise over the lunar horizon Caption:The Earth in the sky over the lunar horizon as seen by Apollo astronauts in orbit around the Moon. Copyright: Credit:NASA

Title:[0416] Earth on the lunar horizon Caption:Earth viewed on the lunar horizon by Apollo astronauts in orbit around the Moon. Copyright: Credit:A NASA/JPL PHOTO

Title:[0713] Crescent Earth over the lunar horizon Caption:A crescent Earth in the lunar sky as viewed by Apollo astronauts in orbit around the Moon. Copyright: Credit:National Optical Astronomy Observatories

Title:[1520] Apollo 11 lunar surface scene Caption:An oblique of the Crater Daedalus on the lunar far side as seen from the Apollo 11 spacecraft in lunar orbit. The view looks southwest. Daedalus (formerly referred to as I. A. U. Crater No. 308) is located at 179 degrees east longitude and 5.5 degrees south latitude. Daedalus has a diameter of about 50 statute miles. This is a typical scene showing the rugged terrain on the far side of the moon. Crew members for the historic first lunar landing mission were astronauts Neil. A. Armstrong, Michael Collins and Edwin E. Aldrin Jr. Copyright: Credit:NASA

Title:[1414] Apollo 14 extravehicular activity Caption:The Apollo 14 Lunar Module as seen by the two moon- exploring crewmen of the Apollo 14 lunar landing mission, photographed against a brilliant sun glare during the first extravehicular activity (EVA-1). A bright trail left in the lunar soil by the two-wheeled Modularized Equipment Transporter (MET) leads from the LM. While Astronauts Alan B. Shepard Jr. and Edgar D. Mitchell were exploring the Moon, Astronaut Stuart A. Roosa was maneuvering the Command and Service Modules in lunar orbit. Copyright: Credit:NASA

Title:[1516] Apollo 14 extravehicular activity Caption:A close-up view of a large boulder in a field of boulders near the rim of Cone Crater, which was photographed by the Apollo 14 moon-explorers during the mission's second extravehicular activity (EVA 2). Astronauts Alan B. Shepard Jr and Edgar D. Mitchell descended in the Apollo 14 Lunar Module to explore the lunar surface while astronaut Stuart A. Roosa remained with the Command and Service Modules in lunar orbit. Copyright: Credit:NASA

Title:[1517] Apollo 15 extravehicular activity Caption:This view, looking generally north, shows the tall Mount Hadley in the left background. The photograph was taken from the slope of Hadley Delta during Apollo 15 extravehicular activity (EVA). The crewmen of Apollo 15 noted the visible layering feature of the mountain. Note boulder in foreground. Mount Hadley rises approximately 14,765 feet (about 4,500 meters) above the plain. Copyright: Credit:NASA

Title:[1525] Apollo 15 extravehicular activity Caption:Astronaut James B. Irwin, lunar module pilot, works at the Lunar Roving Vehicle during the first Apollo 15 lunar surface extravehicular activity (EVA-1) at the Hadley-Apennine landing site. The shadow of the Lunar Module "Falcon" is in the foreground. This view is looking northeast, with Mount Hadley in the background. This photograph was taken by astronaut David R. Scott, commander. Copyright: Credit:NASA

Title:[1524] Apollo 15 Lunar Roving Vehicle traverse map Caption:An enlarged Lunar Orbiter photograph showing the Lunar Roving Vehicle (LRV) traverse routes overlaid on the Hadley-Apennine landing site. Apollo 15 is to land at the point labeled "site", and a comparison of Apollo 14 crater sizes with those of Apollo 15 is also included. Copyright: Credit:NASA

Title:[1535] Crater Humboldt from Apollo 15 Caption:An oblique view of the crater Humboldt, as photographed by the Fairchild metric camera in the SIM bay of the Apollo 15 Command/Service Module in lunar orbit. This view is looking south. Humboldt, which is 200 km (124 statute miles) in diameter, is located at 81 degrees east longitude and 27 degrees south latitude. The 3-inch mapping camera was one of eight lunar orbital science experiments located in the SIM bay. Copyright: Credit:

Title:[1513] Apollo 17 extravehicular activity photomosaic Caption:Scientist-astronaut Harrison H. Schmitt is photographed standing next to a huge, split lunar boulder during the third Apollo 17 extravehicular activity (EVA 3) at the Taurus-Littrow landing site. The lunar rover, which transported Schmitt and Eugene A. Cernan to this extravehicular station from their lunar module, is seen in the background. The mosaic is made from two frames from Apollo 17 Hasselblad magazine 140. The two frames were photographed by Cernan. Copyright: Credit:NASA

Title:[1416] Apollo 17 extravehicular activity scene Caption:This 70mm frame features a large multi-cracked boulder discovered by astronauts Eugene A. Cernan and Harrison H. (Jack) Schmitt during their visit to Extravehicular Activity Station 6. This boulder, referred to as "number two", provided several samples for the crew members' record-setting volume of rock collections. Copyright: Credit:NASA

Title:[1417] Apollo 17 landing site Caption:An artist's concept illustrating the topographical layout of the Taurus-Littrow landing site of the Apollo 17 lunar landing mission. The Lunar Module touchdown point is in the center of the smooth area in the middle of the picture. The imposing mountain in the center is South Massif. A portion of North Massif is in the lower right corner of the photograph. Note the ridge-like feature extending from South Massif to North Massif. The southern portion of the ridge is called Lee Scarp and the northerly portion Lincoln Scarp. (This concept is by JSC artist Jerry Elmore). Copyright: Credit:NASA

Title:[1543] Collecting lunar rock samples during Apollo 17 mission Caption:Apollo 17 astronaut and geologist Jack Schmitt collects samples of loose material from the lunar surface with a rake-like scoop. The North Massif is on the right. Copyright: Credit:NASA

Title:[0305] Crater Schmidt Caption: Lunar crater Schmidt, 11 km in diameter, photographed by the crew of Apollo 10 Copyright: Credit:NASA

Title:[0714] Earthrise over the Moon Caption:The crescent Earth over the rolling terrain of the lunar far side as seen by the Apollo 17 astronauts during their last orbit of the Moon. Copyright: Credit: National Optical Astronomy Observatories

Title:[0308] Lunar surface viewed from spacecraft in lunar orbit Caption:Lunar surface viewed from spacecraft in lunar orbit Copyright: Credit:NASA

Title:[0304] The lunar surface Caption:The lunar surface Copyright: Credit:NASA

Title:[3021] Crater Van de Graaff on the far side of the Moon Caption:This Apollo 17 photograph from lunar orbit shows part of the lunar far side, with the Crater Van de Graaff (diameter 234 km) dominant. Copyright: Credit:NASA

Title:[4036] UV/visible composite images of Tycho crater on the Moon Caption:These pictures of Tycho crater and its central peak were produced by using different filtered images from the UV/visible camera on the Clementine spacecraft. The images from the UV/visible camera were used to produce the composite image on the right using the red, green, and blue filters. The image in the center is a color composite formed using the ratio of different filters where red is 750 nm/415 nm, green is 750 nm/1000 nm, and blue is 415 nm/750 nm. The image on the left shows the ratio 750 nm/1000 nm. Different combinations of filters are used to expose different types of material on the surface. Copyright: Credit:NASA- Goddard Space Flight Center

Title:[4037] Color ratio image of Aristarchus Crater Crater Caption:Clementine color ratio composite image of Aristarchus Crater. Ejecta from the plateau is visible as the blue material at the upper left (northwest), while material excavated from the Oceanus Procellarum area is the reddish color to the lower right (southeast). The colors in this image can be used to ascertain compositional properties of the materials making up the deep strata of these two regions. Copyright: Credit:NASA- Goddard Space Flight Center

Title:[4038] The Earth over the Moon's north pole Caption:Clementine colorized image showing the full Earth over the Moon's north pole. The angular distance between the Earth and the Moon has been reduced for illustration purposes. Copyright: Credit:NASA- Goddard Space Flight Center

Title:[4039] Mosiac of the South Pole of the Moon Caption:Mosaic of 1500 Clementine images of the south polar region of the Moon. These images were taken through the red filter of the UV/visible camera. This image shows the south pole at the center and extends to 70 deg. S latitude at the edge, a distance of about 1250 km across the image. This region is dominated by a major depression centered near the south pole, resulting in shadowed areas. Copyright: Credit:NASA- Goddard Space Flight Center

Title:[3024] Total lunar eclipse, 5/6 July 1982 Caption:A wide-angle view of the totally eclipsed Moon on 5/6 July 1982, viewed against the stars of the constellation Sagittarius. The uneven illumination of the Moon by sunlight scattered in the Earth's atmosphere was thought to be the result of volcanic dust, especially from the eruption of El Chichon in Mexico, suspended in the atmosphere in Earth's northern hemisphere. Copyright: Dennis di Cicco Credit: Dennis di Cicco

Title:[3025] Total lunar eclipse, 18/19 November 1975 Caption:A view of the totally eclipsed Moon of 18/19 November 1975. During this eclipse, the Moon passed through the southern half of Earth's umbral shadow. The Moon appears reddish even during totality because it reflects sunlight scattered by Earth's atmosphere. Copyright:Dennis di Cicco Credit:Dennis di Cicco