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The energy required to send objects from the Moon to space is much less than from Earth to space. This could allow the Moon to serve as a source of construction materials within cis-lunar space. Rockets launched from the Moon would require less locally produced propellant than rockets launched from Earth.
Cislunar space is a region outside of Earth that includes lunar orbits, the Moon's orbital space around Earth and the Lagrange points. [ 101 ] The region where a body's gravitational potential remains dominant against gravitational potentials from other bodies, is the body's sphere of influence or gravity well, mostly described with the Hill ...
Near-rectilinear halo orbit (NRHO) in cislunar space, as illustrated by A.I. Solutions, Inc. using the FreeFlyer software.. In orbital mechanics a near-rectilinear halo orbit (NRHO) is a halo orbit that passes close to the smaller of two bodies and has nearly stable behavior. [1]
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 2 million km figure arises from the International Telecommunication Union specifications, which sets aside various frequency bands for deep space and near Earth use. This standard defines "deep space" to start at a distance of 2 million km (1.2 million mi) from the Earth's surface, [4] whereas "near space" is anything closer. Therefore LEGS ...
Schematic illustration of the internal structure of the Moon. Several lines of evidence imply that the lunar core is small, with a radius of about 350 km or less. [5] The diameter of the lunar core is only about 20% the diameter of the Moon itself, in contrast to about 50% as is the case for most other terrestrial bodies.
The English proper name for Earth's natural satellite is typically written as Moon, with a capital M. [19] [20] The noun moon is derived from Old English mōna, which 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).
Tranquility Base: (L to R) Astronaut Buzz Aldrin, scientific equipment, Apollo Lunar Module Eagle; US flag and television camera in back (photo by Neil Armstrong). A moonbase (or lunar base) is a human outpost on or below the surface of the Moon. [1]