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.
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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Planetary Defense: The Risk, Recent Achievements, and Work to Go
July 14, 2026 10:00 AMColloquiaAsteroid impacts pose a credible threat to humanity, but--unlike many types of natural disasters--they are also potentially preventable. Planetary defense encompasses all efforts to detect and warn of…View Webcast -
Into the Deep and Beyond: Webb’s First Four Years
July 21, 2026 04:00 PMLecturesSpeaker: Dr. Macarena Garcia Marin, STScI and European Space Agency The Webb Space Telescope is the largest and most sophisticated space telescope ever built. Its successful launch in 2021 marked…View Webcast
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