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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.

  • SAGE III/ISS Science Team Meeting Highlights Advancements in Aerosol Products and Strong Global Partnerships in Atmospheric Research

    SAGE3ISS 2026 STM Meeting

    The Stratospheric Aerosol and Gas Experiment (SAGE) III on the International Space Station (ISS) ninth annual science team meeting was held August 19–20, 2026 at NASA’s Langley Research Center in Hampton, Virginia. Approximately 60 scientists and engineers participated in the hybrid meeting, discussing the status of the mission, instrument operations, data processing, as well as […]

  • Call for Papers SAGE Data Products: Algorithms, Science, and Applications for Upper Troposphere and Stratosphere Studies

    The SAGE community is pleased to announce that a special collection is now open in the following AGU journals: Journal of Geophysical Research: Atmospheres, Earth and Space Science, and Geophysical Research Letters. The call for papers is available at this link, where you may also submit your manuscripts to the special collection. In addition, if […]

  • Successful Eighth Annual Science Team Meeting

    The Stratospheric Aerosol and Gas Experiment (SAGE) III instrument was launched in February 2017 to the International Space Station (ISS) and continues to provide the public and science community with world-class ozone, aerosol, and water vapor data products. The annual SAGE III/ISS Science Team meeting was held as a hybrid event hosted at NASA Langley […]

  • SAGE III/ISS Observes 2025 Wildfire Season

    The 2025 wildfire season in Canada has been long and widespread with over 6.8 million hectares burned as of August 6, 2025, placing this year in the top 5 seasons, but less than half the size of the devastating 2023 season, according to the Canadian Wildfire Information System. Smoke from the fires traveled to the […]

  • SAGE III/ISS Version 6.0 Product Release Announcement

    The Stratospheric Aerosol and Gas Experiment III installed on the International Space Station (SAGE III/ISS) mission team announces public release of newly versioned science products. This SAGE III/ISS Version 6.0 (v6) includes Solar Level 1B, Solar Level 2, and Lunar Level 2 data products. Details of v6.0 can be found in the Release Notes and […]

  • Updates from the SAGE III/ISS Visualization Team

    In our continuing endeavor to make SAGE III data more accessible and to increase its utilization, the SAGE III/ISS team at NASA Langley Research Center launched enhancements and new features to the Quicklook and Expedited website for data visualization products. Some highlights of the changes made include easier navigation and display on mobile devices, as […]

  • SAGE III/ISS Summer 2025 Internship Opportunity

    About this opportunity: Internships are educational hands-on opportunities that provide unique NASA-related research and operational experiences for educators and high school, undergraduate, and graduate students (age 16 and up). To learn more and apply, visit: SAGE III/ISS Mission Science Internship Application Deadline: February 28, 2025 This internship will involve analyses and problem solving related to […]

  • Successful Seventh Annual SAGE III/ISS Science Team Meeting

    The annual Stratospheric Aerosol and Gas Experiment III on the International Space Station (SAGE III/ISS) Science Team Meeting was held as a hybrid event hosted at NASA Langley Research Center on October 22 and 23, with over 50 participants. Nearly 30 technical presentations were given on topics ranging from the SAGE III/ISS mission and data […]