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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: 1170
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Planetary Systems and the Origins of Life in the Era of JWST

May 16 through 19, 2023 10:00 AM
Symposia
Building on the foundational work enabled by HST and Spitzer, one of JWST’s main scientific drivers is the study of the origins of life, from planetary formation and exoplanetary…
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A Drop in the Light Bucket: How Do We Measure a Galaxy?

May 2, 2023 08:00 PM
Lectures
Speaker:  Dr. Amanda Pagul (Space Telescope Science Institute) Tracing back to the Hubble Deep Field in the 1990s, galaxy surveys with space telescopes have become a fundamental part of cosmological…
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Measuring the Masses of Exoplanets and Compact Objects with the Roman Galactic Bulge Time Domain Survey

April 20, 2023 04:00 PM
Lectures
The Roman Galactic Bulge Time Domain Survey (GBTDS) will detect more than 30,000 gravitational microlensing events across six observing seasons. It is expected that over 1000 exoplanets, a few hundred…
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Unveiling the Secret History of Dwarf Galaxies by Surveying their Pulsating Stars

April 5, 2023 03:00 PM
Colloquia
Dwarf galaxies are the essential ingredients in the buildup of large complex galaxies. They are relatively simple systems; yet their observed properties are somewhat at odds with theoretical predictions…
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Exploring Rocky Worlds: On the Precipice of a New Frontier

April 4, 2023 06:00 PM
Lectures
Speaker: Katherine Bennett (Johns Hopkins University) The simple, significant question, "Do other planets like Earth exist?" has slowly pushed from science fiction speculation into serious…
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YAE In-Person Family STEM Forum

March 30, 2023 05:00 PM
Community Events
Please join us in-person to learn more about astronomy during our Youth for Astronomy and Engineering Program spring event "Family STEM Forum" followed by an opportunity to engage in hands-on…
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Heavy Element Nucleosynthesis from the Birth of Black Holes

March 15, 2023 03:00 PM
Colloquia
The origin of the heaviest elements in our universe—those produced via the rapid neutron capture process ("r-process")—remains a question of intense debate. Although the kilonova…
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Understanding the Role of Quasar Feedback and Radio Emission in Red Quasars

March 8, 2023 03:00 PM
Colloquia
Observational evidence suggests that quasar activity plays an important role in regulating how galaxies and their nuclear supermassive black holes grow and co-evolve, despite their orders-of-magnitude…
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Active Galaxies: Monsters of the Deep (Space)

March 7, 2023 08:00 PM
Lectures
Speaker: Travis Fischer (Space Telescope Science Institute) Active galaxies are some of the most fascinating objects in the universe. They emit copious amounts of energy, often exceeding the energy…
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Life in the Light: Photochemical Insights Towards Life as a Planetary Phenomenon

March 3, 2023 12:00 PM
Lectures
Advances in origins-of-life chemistry are transforming our understanding of how life emerged on Earth, while upcoming space missions offer the prospect of detecting life on other worlds. Fundamental to…
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Dwarf Galaxy Archaeology in the Gaia Era

March 1, 2023 03:00 PM
Colloquia
The Milky Way's satellite dwarf galaxies are powerful probes of many important astrophysical processes. Their kinematics provide insights into galactic dynamics and the nature of dark matter, while…
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Deciphering the Effects of Evolved Stars on Galaxies

February 22, 2023 03:00 PM
Colloquia
Thermally-pulsing Asymptotic Giant Branch (TP-AGB) stars dominate the IR flux in star-forming galaxies (up to 70%). This dominance has a significant impact on model-dependent derived galaxy properties…
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Spectral Characterization of the Roman Space Telescope Grism and Prism Slitless Spectrometers

February 16, 2023 04:00 PM
Lectures
The RST Grism and Prism assemblies will provide the Wide-Field Instrument (WFI) with the ability to perform slitless, multi-object spectroscopy across the complete field of view. These optical elements…
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A Collage of Exoplanets on the Mass-Period Diagram

February 15, 2023 03:00 PM
Colloquia
I will talk about different populations of exoplanets and their interconnection. Specifically, I will present chemical composition measurements for hot Jupiters and directly-imaged young jovian planets,…
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Dynamical Tests of Dark Matter and Galaxy Formation Theories in the Milky Way

February 8, 2023 03:00 PM
Colloquia
The results of the Gaia astrometric mission have ushered in a new era of "precision Galactic dynamics". Using this new phase-space map of Galactic stars with unprecedented volume and…
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