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The Lunar Gateway, or simply Gateway, is a space station which is planned to be assembled in orbit around the Moon.The Gateway is intended to serve as a communication hub, science laboratory, and habitation module for astronauts as part of the Artemis program.
Nodal precession of the lunar nodes as the Earth revolves around the Sun causes an eclipse season approximately every six months. A lunar eclipse can occur only when the full Moon is near either lunar node (within 11° 38' ecliptic longitude), while a solar eclipse can occur only when the new Moon is near either lunar node (within 17° 25').
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.
The Moon can be described as all of the following: Natural satellite – celestial body that orbits another celestial body of greater mass (e.g. a planet, star, or dwarf planet), called its primary. [1] [2] For example, the Moon is a natural satellite of Earth, and Earth is a natural satellite of the Sun.
The Earth will gain a second, mini-moon on Sept. 29, but it won't stick around too long, USA TODAY reports. The asteroid 2024 PT5 is expected to escape Earth's orbit on Nov. 25 and be pulled ...
Most lunar low orbits below 100 km (60 mi) are unstable. [2]Lunar Module Eagle in lunar orbit during Apollo 11, July 1969. Gravitational anomalies slightly distorting the orbits of some Lunar Orbiters led to the discovery of mass concentrations (dubbed mascons) beneath the lunar surface caused by large impacting bodies at some remote time in the past.
The usual English proper name for Earth's natural satellite is simply Moon, with a capital M. [19] [20] The noun moon is derived from Old English mōna, which (like all its Germanic cognates) stems from Proto-Germanic *mēnōn, [21] which in turn comes from Proto-Indo-European *mēnsis 'month' [22] (from earlier *mēnōt, genitive *mēneses) which may be related to the verb 'measure' (of time).