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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Results: 1207
Showing 15 matching items
  1. YAE In-Person Family STEM Forum

    March 14, 2024 05:00 PM
    Community Events
    Please join us in-person to learn more about astronomy during our Youth for Astronomy and Engineering Program event "Family STEM Forum" followed by an opportunity to engage in hands-on activities…
    View Webcast
  2. ULLYSES: Continuing the Voyage of Discovery

    March 11 through 14, 2024 12:00 AM
    Workshops
    The observational phase of the HST Ultraviolet Legacy Library of Young Stars as Essential Standards (ULLYSES) program initiated by the STScl Director in 2019 was completed in 2023. ULLYSES provides a legacy…
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  3. The Prevalence and Origin of the Alpha-Bimodality in the Local Group

    March 6, 2024 03:00 PM
    Colloquia
    The recent era of large, ground-based abundance surveys has unraveled the chemical structures of our Milky Way galaxy. The most striking abundance feature is the alpha-abundance bimodality. The low-alpha…
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  4. The Milky Way Laboratory

    February 28, 2024 03:00 PM
    Colloquia
    Galaxy centers are the hubs of activity that drive galaxy evolution, from supermassive black holes to feedback from dense stellar clusters. While the bulk of our Milky Way Galaxy is a prime example of…
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  5. Habitability and Biosignature Preservation in Magnesium Sulfate Brines: Lessons from the “Spotted” Lakes

    February 23, 2024 12:00 PM
    Lectures
    Observations of Mars have revealed the widespread presence of paleo-evaporitic deposits, in the form of magnesium sulfate salts. MgSO4 salts have been known to preserve evidence of life on geological…
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  6. The New Directly Imaged Planets and Their Substellar Analogs

    February 21, 2024 03:00 PM
    Colloquia
    Directly imaged planets are a peculiar population of self-luminous, massive, and young giant exoplanets and brown dwarf companions. JWST has now expanded this population to lower mass, colder, older, long-period…
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  7. Astronomy Re-envisioned: Investigating the Physics of Galaxy Evolution with Machine Learning

    February 15, 2024 04:00 PM
    Lectures
    Astronomical imaging of galaxies reveals how they formed and evolved. While spectroscopy is necessary for measuring galaxies' physical properties, such as their cold gas content or metallicity, it…
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  8. CTU-GSP (CTU's Ground Sphere Project): Innovation of a Low-Cost Ground Station for University Use

    February 13, 2024 10:00 AM
    Colloquia
    This multi-semester engineering project focuses on researching, designing, developing, and innovating a low budget ground station for use by Capitol Technology University (CTU) students. The project began…
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  9. A Tapestry of Gravity: LISA and the Future of Gravitational Wave Astronomy

    February 6, 2024 08:00 PM
    Lectures
    Speaker: Shane L. Larson (Northwestern University) Nearly everything we know about the universe has been discovered using photons - light in all its myriad forms. However, using advanced technology…
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  10. How Earth’s Early Oceans and Atmosphere Help Guide the Search for Life Beyond Our Solar System

    February 2, 2024 12:00 PM
    Lectures
    Life and life-sustaining environments, including oceans, have existed on a dynamic Earth for more than four billion years despite the multitude of challenges that come with stellar, solar system, and planetary…
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  11. Simulation of High-contrast Polarimetric Observations of Debris Disks with the Roman Coronagraph Instrument

    January 18, 2024 04:00 PM
    Lectures
    The Nancy Grace Roman Space Telescope Coronagraph Instrument will enable the polarimetric imaging of debris disks and inner dust belts in the optical and near-infrared wavelengths, in addition to the high-contrast…
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  12. How to be a Scientist in a World on Fire: Rethinking Academia in a Time of Climate Crisis

    January 16, 2024 10:00 AM
    Colloquia
    To address the climate and ecological crisis, we need radical and urgent action at all levels of society. Universities are ideally positioned to lead these societal transformations, yet are largely failing…
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  13. The Enigmatic World of Brown Dwarfs: Failed Stars or Errant Planets?

    January 9, 2024 08:00 PM
    Lectures
    Speaker: Elena Manjavacas (Space Telescope Science Institute) During their formation, brown dwarfs did not manage to accrue enough mass to ignite hydrogen fusion, and hence, they are not stars. In…
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  14. On Galaxies Circumgalactic Media and Outflows

    December 6, 2023 03:00 PM
    Colloquia
    The gas reservoir around galaxies plays a fundamental, while still poorly understood, role in regulating the growth of galaxies, in establishing the scaling relation we observe among galaxies' physical…
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  15. Celebrating NASA’s 40-Year Legacy of Infrared Astronomy from Space

    December 5, 2023 08:00 PM
    Lectures
    Speakers: Robert Hurt (Caltech/IPAC) Since July 2022, the world has been amazed by the incredible fidelity of the Webb Space Telescope's infrared view of the universe. Yet 2023 also marks anniversaries…
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