Future Missions : near - Earth Asteroids * Lagrange points * The Moon * The Red Planet Mars * Deep Space destinations

Exploration Flight Test 1 planned for 2014 Which will be Launched By The SLS or TheSpace Launch System





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Distance to Earth 384.400 Km
Gravity 1.622 m/s2 | Orbital Period 27 Days | Orbits : Earth | Alternative Names : Luna, Selena |

Orbital Characteristics
Perigee : 362570 Km / 225..291 Miles = 0,0024 AU | Apogee : 405410 Km / 25190 Miles = 0,0027 AU | Average Orbital Speed
1,022 Km / s . | Orital Period : 27,321582 d = 27 d 7 h 43,1 Min | Synodic Period : 29,530589 d = 29 d 12 h 44 Min 2,9 s | Argument Of Perigee : Progressing by one Revolution in 8.85 Years | Satellite Of EARTH .

Physical Characteristics
Mean radius : 1.738,10 Km +/- 0,273 Earth's | Equatorial radius : 1.738,14 Km +/- 0,273 Earth's | Polar radius : 1.735,97 Km +/- 0,273 Earth's |
Circumference : 10.921 Km ( Equatorial ) | Surface Area : 3.793 (10)7 Km2 ( 0,074 Earth's ) | Volume : 2.1958 x (10)10 Km3 ( 0,020 Earth's ) |
Mass : 7.347 x (10)22 Kg ( 0,123 Earth's )


Moon Meteorite

The idea that rocks could fall from the sky was generally accepted by the early nineteenth century. At first, people thought these rocks formed in the atmosphere, hence the name meteorites. By the beginning of the twentieth century, scientists were sure that meteorites came from space and fairly sure they came from our solar system. Evidence mounted that meteorites came from the asteroid belt (between Mars and Jupiter), and until the early 1980s most scientists thought that all meteorites came from this belt.

This meteorite, found in Antarctica in 1981, was the first exception. It is almost identical to rocks that the Apollo astronauts brought back from the Moon, and detailed study showed that it was from the Moon. The white fragments are rich in anorthite, a calcium-rich silicate mineral that makes up most of the lunar highlands. Lunar meteorites have a distinctive greenish tinge to their fusion crusts. Twelve lunar meteorites had been identified by late 1996, including rocks from the lunar highlands and the maria (the dark areas of the Moon). All the lunar meteorites, like the Apollo rocks, are ancient; they formed more than 3 billion years ago.

Credit: Lunar and Planetary Institute


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The Moon is the only natural satellite of the Earth, and the fifth largest satellite in the Solar System. It is the largest natural satellite of a planet in the Solar System relative to the size of its primary, having 27% the diameter and 60% the density of Earth, resulting in 1⁄81 itsmass. The Moon is the second densest satellite after Io, a satellite of Jupiter.

The Moon is in synchronous rotation with Earth, always showing the same face with its near side marked by dark volcanic maria that fill between the bright ancient crustal highlands and the prominent impact craters. It is the brightest object in the sky after the Sun, although its surface is actually very dark, with a reflectance similar to that of coal. Its prominence in the sky and its regular cycle of phases have, since ancient times, made the Moon an important cultural influence on languagecalendarsart and mythology. The Moon's gravitational influence produces the ocean tides and the minute lengthening of the day. The Moon's current orbital distance, about thirty times the diameter of the Earth, causes it to appear almost the same size in the sky as the Sun, allowing it to cover the Sun nearly precisely in total solar eclipses. This matching of apparent visual size is a coincidence. The Moon's linear distance from the Earth is currently increasing at a rate of 3.82±0.07cm per year, however this rate is not constant.





Credits : NASA * WikiPedia