The Space Telescope Science Institute (STScI) presents live and archived webcasts that examine an array of science, technology, and business topics. Although these lectures primarily serve the scientific community, many are also designed for the public. STScI employees will be prompted to sign in to access restricted/internal webcasts.

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Use the filter bar below to search by specific criteria including Type, Mission, Keyword, and/or Date. Click the Submit button to generate the query. Information and resources for each event may be found by clicking on the "Learn More" link and recordings may be watched via the "View Webcast" link. All times listed are Eastern Time, unless otherwise noted. Refer to our Webcast FAQs page for guidance with questions.

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  1. Discovering the Least-Massive Brown Dwarfs Known with the James Webb Space Telescope

    February 24, 2026 07:00 PM
    Lectures
    Speaker: Dr. Kevin Luhman (Pennsylvania State University) Stars exist across a wide range of masses, some more massive than the Sun and some less massive. If a star is less massive than roughly 8%…
    View Webcast

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