What's Happening?
NASA's Arcstone satellite has completed commissioning, beginning its mission to improve lunar reflectance measurements. Launched on July 23, 2025, the satellite aims to enhance the calibration of spaceborne sensors by using the Moon as a reference. This technology demonstration could lead to better data quality from Earth-viewing sensors, reducing the need for onboard calibration sensors.
Why It's Important?
Arcstone's mission could significantly improve the accuracy of satellite data, benefiting scientific research and commercial space industries. By establishing a universal calibration standard, it could lower costs and complexity for future missions, enhancing the reliability of data used in climate studies and other Earth sciences.
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