The U.S. Space Force aims to better pinpoint the location of Earth's true center using lasers on GPS satellites slated to launch in 2025.
A set of laser retroreflector arrays, or LRAs, will be installed onto two GPS III satellites, called SV9 and SV10, as part of NASA's Space Geodesy Program space sensor network. The lasers are designed to make precise sub-centimeter level measurements using a technique called Satellite Laser Ranging (SLR), which will allow researchers to more accurately determine Earth's center, according to a statement from the Space Force.
