LAGEOS
（重定向自Laser Geodynamic Satellite）
![The LAGEOS-1 satellite (diameter=60 cm)](/Images/godic/202501/23/LAGEOS-NASA1448.jpg")
![The LAGEOS plaque, designed by Carl Sagan](/Images/godic/202501/23/LAGEOS-FILE1449.jpg")
![Deployment of LAGEOS 2 during STS-52](/Images/godic/202501/23/Sts052-80-030_lrg1449.jpg")
LAGEOS, or Laser Geodynamics Satellite, are a series of two scientific research satellites designed to provide an orbiting laser ranging benchmark for geodynamical studies of the Earth. Each satellite is a high density passive laser reflector in a very stable medium Earth orbit (MEO).