Just like humans need to use sunblock, the Earth needs protection too. SAGE III measures Earth’s sunscreen, or ozone, along with other gases and aerosols, or tiny particles in the atmosphere. SAGE III continues a long history of accurate measurements that provide the foundation for sound environmental policy. SAGE will join a small suite of other continuous Earth-observing instrument on the International Space Station, when it launches on SpaceX in 2016 and is attached via robotic arm.
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Stratospheric Aerosol and Gas Experiment (SAGE) Home