Stratospheric Aerosol and Gas Experiment - III
Stratospheric Aerosol and Gas Experiment III-ISS (SAGE III-ISS) is a key part of NASAโs mission to provide crucial, long-term measurements of that will help humans understand and care for Earthโs atmosphere. SAGE III measures Earthโs sunscreen, or ozone, along with other gases and aerosols, or tiny particles in the atmosphere. SAGE makes its measurements by locking onto the sun or moon and scanning the limb, or thin profile of the atmosphere from the unique vantage point of the International Space Station (ISS) which helps maximize the scientific value of SAGE III observations.