Lunar Laser Ranging (LLR) is the practice of measuring the distance between the surfaces of the Earth and the Moon using laser ranging. The distance can...

The Laser Ranging Retroreflector (LRRR) is the first ever deployable lunar laser ranging experiment. It was carried on Apollo 11 as part of the Early Apollo...

an average rate of 3.8 cm (1.5 in) per year, as detected by the Lunar Laser Ranging experiment. Because of the influence of the Sun and other perturbations...

lunar laser ranging. In the 2010s, the International Lunar Network consisting of robotic instruments placed around the moon was also proposed. Lunar orbital...

The Apache Point Observatory Lunar Laser-ranging Operation, or APOLLO, is a project at the Apache Point Observatory in New Mexico. It is an extension...

Lunokhod space programs. These retroreflectors are also ranged on a regular basis (lunar laser ranging), providing a highly accurate measurement of the dynamics...

Chandrayaan program. Lunar reflectors have enabled precise measurement of the Earth–Moon distance since 1969 using lunar laser ranging. Several unsuccessful...

from laser ranging retro-reflectors (LRRRs, or arrays of corner-cube prisms used as targets for Earth-based tracking lasers) on Lunar Laser Ranging experiments...

the Lunar Laser Ranging experiment and 2 retroreflectors by Lunokhod rovers allowed accurate measurement of the physical librations by laser ranging to...

S.G.; Boggs, D.H.; Ratcliff, J.T. (2006). "Lunar laser ranging science: Gravitational physics and lunar interior and geodesy". Advances in Space Research...

long history of lunar theories: it stretches from the times of the Babylonian and Greek astronomers, down to modern lunar laser ranging. Among notable...

they planted retroreflector arrays to make possible the Lunar Laser Ranging Experiment. Laser beams are focused through large telescopes on Earth aimed...

rover in Lunar Reconnaissance Orbiter image M114185541RC (Line 21977, Sample 3189). In April 2010, the Apache Point Observatory Lunar Laser-ranging Operation...

Kennedy–Thorndike experiment have been conducted using optical cavities or Lunar Laser Ranging. For a general overview of tests of Lorentz invariance, see Tests...

LRRR may refer to: Laser Ranging Retroreflector, for Lunar laser ranging Lrrr, a character in the TV series Futurama LRR (disambiguation) This disambiguation...

Scientific research satellites Lunar Laser Ranging experiment – Measuring the distance between the Earth and the Moon with laser lightPages displaying short...

Investigator on the Apollo Program's Lunar Laser Ranging Experiment, which significantly restricted the possible range of spatial variation of the strength...

Remote Camera Tianwen-1 Deployable Camera 2 List of laser ranging satellites Lunar Laser Ranging experiment Balloon satellites Satellite geodesy "NASA...

laser ranging. LAGEOS, or Laser Geodynamics Satellites, are a series of scientific research satellites designed to provide an orbiting laser ranging benchmark...

collected from the Lunar Laser Ranging experiment with lunar gravity field data from the GRAIL mission, shows that for a relaxed lunar fluid core with non-hydrostatic...

polarization of the lunar orbit. To test for the existence (or absence) of the Nordtvedt effect, scientists have used the Lunar Laser Ranging experiment, which...

Nordtvedt effect. This effect has been sensitively tested by the Lunar Laser Ranging Experiment. Up to the limit of one part in 1013 there is no Nordtvedt...

Laboratories of Frascati (INFN-LNF) to complement and expand on the Lunar Laser Ranging experiment started with the Apollo Program in 1969. MoonLIGHT was...

retroreflectors for the Lunar Laser Ranging experiments left there by the Apollo 11, 14, and 15 astronauts, Chandrayaan-3 lunar lander, and by the Soviet...

the coordinate system has become more precisely defined due to the Lunar Laser Ranging Experiment. Anything past 90°E or 90°W would not be seen from Earth...

water ice deposits. Lunar Orbiter Laser Altimeter (LOLA) The Lunar Orbiter Laser Altimeter investigation provides a precise global lunar topographic model...

used to measure moonquakes and a retroreflector array used for the lunar laser ranging experiment. Then Armstrong walked 196 feet (60 m) from the LM to...

gravitational fields. In 1986, Bartlett and Van Buren noted that lunar laser ranging had detected a 2 km offset between the moon's center of figure and...

more precisely defined using the Lunar Laser Ranging Experiment. By convention these features are identified on lunar maps by placing the letter on the...

VLBI), visible stars (in stellar triangulation), and the retroreflectors on the Moon (in lunar laser ranging, LLR). Astronomical geodesy v t e v t e...