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The gravitational field of the Moon has been measured by tracking the radio signals emitted by orbiting spacecraft. The principle used depends on the Doppler effect, whereby the line-of-sight spacecraft acceleration can be measured by small shifts in frequency of the radio signal, and the measurement of the distance from the spacecraft to a ...
11 sty 2024 · The orbit changes over the course of the year so the distance from the Moon to Earth roughly ranges from 357,000 km to 407,000 km, giving velocities ranging from 1.100 to 0.966 km/s.
This web page provides basic information about the Moon, such as its size, orbit, structure, surface, and history. It does not mention the gravity of the Moon or how it affects Earth or other objects in space.
Learn about the Moon's formation, size, orbit, rotation, phases, and surface from NASA. The Moon has no rings, no moons, and no life, but it has water ice, craters, and volcanoes.
Both the low gravity environment of the Moon and its distance from Earth enable studies in areas of quantum physics and General Relativity. As such, investigations on the lunar surface and in lunar orbit will advance basic knowledge of the fundamental laws of physics and test decades old theories.
30 maj 2013 · Using high-resolution gravity data from NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission, researchers at MIT and Purdue University have mapped the structure of several lunar mascons and found that their gravitational fields resemble a bull’s-eye pattern: a center of strong, or positive, gravity surrounded by alternating rings ...
4 paź 2017 · Very precise microwave measurements between two spacecraft, named Ebb and Flow, were used to map gravity with high precision and high spatial resolution. This image shows the variations in the lunar gravity field as measured by NASA's Gravity Recovery and Interior Laboratory (GRAIL) during the primary mapping mission from March to May 2012.
