Tootfinder

NASA’s #Arcstone instrument, designed to improve the accuracy of lunar calibration, successfully completed its technology demonstration, and now begins extended operations: https://www.nasa.gov/blogs/smallsatellites/2026/01/28/nasas-arcstone-instrument-successfully-completes-primary-mission/ - Arcstone launched on June 23 on a SpaceX Transporter-14 from Vandenberg Space Force Base in California, on a six-month mission to measure light reflected by the Moon, which is a stable and potentially highly-accurate calibration source, for satellite sensors