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The Moon is Earth's only natural satellite. It orbits at an average distance of 384,400 km (238,900 mi), about 30 times the diameter of Earth. Tidal forces between Earth and the Moon have synchronized the Moon's orbital period (lunar month) with its rotation period at 29.5 Earth days, causing the same side of the Moon to always face Earth.
The Moon Courtesy World Monuments Fund As space exploration advances, the preservation of early Moon landing sites, like Tranquility Base, is crucial to protect humanity’s collective achievements.
Firefly's Blue Ghost lunar lander stands more than 6 feet tall and nearly 12 feet wide. Powered by three solar panels, the spacecraft is designed to stick the landing when it makes it to the moon ...
On 20 July 1969 Apollo 11 landed on the Moon, and Neil Armstrong became the first person to walk on the Moon. At the same time another mission, the robotic sample return mission Luna 15 by the Soviet Union, was in orbit around the Moon, becoming together with Apollo 11 the first ever case of two extraterrestrial missions being conducted at the ...
The Moon's heavily cratered far-side. The origin of the Moon is usually explained by a Mars-sized body striking the Earth, creating a debris ring that eventually collected into a single natural satellite, the Moon, but there are a number of variations on this giant-impact hypothesis, as well as alternative explanations, and research continues into how the Moon came to be formed.
The Moon then wanes as it passes through the gibbous moon, third-quarter moon, and crescent moon phases, before returning back to new moon. The terms old moon and new moon are not interchangeable. The "old moon" is a waning sliver (which eventually becomes undetectable to the naked eye) until the moment it aligns with the Sun and begins to wax ...
Moon landing deniers say there's clear photographic evidence of this, and point out that because there's no breeze on the moon, this must be fake. Apollo 11astronaut Edwin Buzz Aldrin, on the Moon ...
The Moon's elongation is its angular distance east of the Sun at any time. At new moon, it is zero and the Moon is said to be in conjunction. At full moon, the elongation is 180° and it is said to be in opposition. In both cases, the Moon is in syzygy, that is, the Sun, Moon and Earth are nearly aligned.