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Stratospheric Aerosol and Gas Experiment (SAGE)

The Stratospheric Aerosol and Gas Experiment, SAGE, is a series of instruments designed by NASA to observe stratospheric ozone, aerosols, and water vapor from space. In the mid-1980s, scientists realized there was a problem with Earth’s protective coat of ozone...it was thinning. The SAGE family of instruments was pivotal in making accurate measurements of the amount of ozone loss in Earth’s atmosphere and helped leaders around the world institute an international treaty banning products containing harmful chemicals that destroy stratospheric ozone. SAGE is a key part of NASA’s mission to provide crucial, long-term measurements that will help humans better understand and care for Earth’s atmosphere.

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  • NASA Langley opens first new lab in nearly 30 years

    Read more in the Daily Press about the Measurement Systems Lab, NASA Langley Research Center’s new, state-of-the-art research facility for developing, testing and implementing new sensor and instrument technologies, including the SAGE IV prototype.Read more here.  More on SAGE IV:  The Stratospheric Aerosol and Gas Experiment IV (SAGE IV) Pathfinder is the next generation in […]

  • SAGE III Observes ISS Contamination Environment

    Operating a science instrument aboard a crewed, frequently visited space station the size of a football field poses many challenges to data collection and quality. The Stratospheric Aerosol and Gas Experiment (SAGE) III instrument, currently on board the International Space Station (ISS), is equipped with the tools necessary to deal with these challenges. Commanded from NASA’s Langley […]