The Moon After Apollo 17 - Lunar Explorer Italia

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Inizio > MOON > The Moon After Apollo 17

Piú votate - The Moon After Apollo 17

B-Tsiolkovsky_3D~0.jpgThe Peak of Tsiolkovsky Crater (3D)97 visitenessun commento

(4 voti)

ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-The Moon.jpgThe North Pole of the Moon69 visiteCaption NASA originale:"This arresting image of the third quarter Moon in the excellent skies above the Pine Crest Farm Observatory, Dell Prairie, Wisconsin, was recorded with a 24" telescope and digital camera on October 19, 2000. Marvelously detailed, especially along the terminator or shadow line between lunar night and day, this cropped version of the full mosaicked image shows the cratered North Polar Region and the broad smooth Mare Imbrium. Notable at the northern edge of the Mare Imbrium (Sea of Rains) is the 95 Km wide dark crater Plato, while the dramatic straight "cut" to the right of Plato, (toward the terminator) is the Vallis Alpes (Alpine Valley). The long, graceful arc of the lunar Montes Apenninus in the lower portion of the image sweeps Southward along the boundary of the mare toward the left and ends near the bright ray crater Copernicus at the picture's edge. In 1971, Apollo 15 landed near the gap beyond the opposite (northern) end of the Montes Apenninus arc".

(4 voti)

ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-The Moon-1.jpgThe Moon from Galileo74 visiteCaption NASA originale:"The Moon's surface is covered with craters, scars of frequent impacts during the early history of the Solar System. Now, recent results from the Lunar Prospector spacecraft support the idea that the Moon itself formed from the debris of a giant impact of a Mars-sized planetary body with the Earth nearly 4,5 BY ago. The impact theory of lunar origin can explain why Moon rocks returned by the Apollo missions have the same isotopic ratios as Earth rocks while the Moon seems deficient in heavy elements like iron. It can also explain a critical finding of the Lunar Prospector experiments - that the Moon's core is proportionally very small. If the Moon formed simply as a Sister World, its origin paralleling Earth's formation from the primordial Solar Nebula, it should have similar iron content and relative core size. But material blasted from the surface of Earth by an impacting body would lack the iron and heavy elements which had settled to the Earth's core yet retain similar ratios of chemical isotopes. A fraction of this debris cloud would remain in Earth orbit ultimately forming the Moon".

(4 voti)

ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-ZZ-The Moon.jpgMare Imbrium, from Galileo77 visiteCaption NASA originale:"Checking out the Galileo spacecraft's cameras during its December 1992 fly-by of Earth's Moon, controllers took this dramatically illuminated picture through a violet filter. The view looks down on the Moon's North Polar Region with the Sun shining from the left at a low angle and the direction toward the Moon's North Pole toward the lower right.
Across the image upper left stretches the smooth volcanic plain of the Mare Imbrium. Pythagoras crater, 65 miles wide, is near the center of the image -- mostly in shadow, its central peak just catches the sunlight (...)".

(4 voti)