English: The Next Generation Lunar Retroreflector (NGLR) serves as a target for lasers on Earth to precisely measure the distance between Earth and the Moon. The NGLR will reflect very short laser pulses from Earth-based Lunar Laser Ranging Observatories (LLROs). The laser pulse transit time to the Moon and back is used to determine the distance. The original Apollo retroflectors provided the coordinates for the Moon that we use today. NGLR will greatly improve upon the Apollo results with sub-millimeter range measurements, providing advances in the lunar coordinate system in advance of the Artemis program. The NGLR will support the Lunar Laser Ranging Program for a long-term investigation of lunar physics, Astrophysics and Cosmology. The improved ranging accuracy from NGLR will contribute to bettering our understanding of the inner structure of the Moon and in addressing theories of dark matter.