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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Stirring the Pot: How a Galaxy Quenches Star Formation Without Removing its Fuel
April 1, 2026 03:00 PMColloquiaModern day galaxies populate a bimodal distribution, in both morphology and color space. Their morphological and color properties are also inter-related, with lenticular and elliptical galaxies exhibiting…View Webcast -
Searching for Supermassive Black Hole Binaries in the Era of Multi-Messenger Astronomy
March 25, 2026 03:00 PMColloquiaSupermassive black hole binaries (SMBHBs) should be common in galactic nuclei as a result of frequent galaxy mergers. Yet they remain undetectable, especially during the final stage of their evolution.…View Webcast -
The Solar System Cookbook: What Is Webb Revealing about How Solar Systems Like Ours Come To Be?
March 18, 2026 07:00 PMLecturesSpeaker: Dr. Klaus Pontoppidan (NASA Jet Propulsion Laboratory) The James Webb Space Telescope has revolutionized our ability to study the formation and growth of new planetary systems, some with similarities…View Webcast -
Ready, Set, Roman! - Proposal FAQs and Office Hours
March 10, 2026 01:00 PMSoftware and DataJoin us for Part 2 of our Roman Proposal FAQs and get your Roman questions answered! The Cycle 1 Proposal Deadline is March 17, 2026. We will present frequently asked questions (FAQs) that have…View Webcast -
Giant Planets to Terrestrial Worlds from the Outside In
March 4, 2026 03:00 PMColloquiaPlanets exhibit extraordinary diversity in physical properties and orbital architectures, spanning more than four orders of magnitude in mass, separation, and age. Interpreting this landscape is challenging…View Webcast -
Ready, Set, Roman! - Proposal FAQs and Office Hours
March 3, 2026 01:00 PMSoftware and DataCome get your Roman questions answered! The Cycle 1 Proposal Deadline is March 17, 2026. We will present frequently asked questions (FAQs) that have been received by the Roman Help Desk that…View Webcast -
Supernova Remnants: Laboratories for Extreme Physics and Cosmic Calibration
February 25, 2026 03:00 PMColloquiaThe superior resolution and sensitivity of JWST at near- and mid-infrared wavelengths open new pathways to address key questions about the nature of supernovae through detailed investigations of young…View Webcast -
Discovering the Least-Massive Brown Dwarfs Known with the James Webb Space Telescope
February 24, 2026 07:00 PMLecturesSpeaker: 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 -
Ready, Set, Roman! - Community Products from the Project Infrastructure Teams (PITs) #2
February 24, 2026 01:00 PMSoftware and DataData Products and Tools from the Project Infrastructure Teams (PITs) may be useful for you to utilize and build upon for your Cycle 1 proposals. This webinar will introduce the Roman PITs selecte…View Webcast -
Characterizing the Galactic Black Hole Population with Roman Astrometry
February 19, 2026 04:00 PMLecturesRoman's Galactic Bulge Time Domain Survey (GBTDS) will be an astrometry machine. The GBTDS will produce precise astrometry at an unprecedented temporal sampling for a large number of sources that both…View Webcast -
Finding Targets for Habitable Worlds Observer: Extremely Precise Radial Velocity Surveys and the Hunt for Earth Analogs
February 18, 2026 03:00 PMColloquiaIn 2019 the NASA-NSF Extremely Precise Radial Velocity (EPRV) Working Group developed a roadmap to discover and measure the masses of temperate terrestrial planets orbiting Sun-like stars. Such a…View Webcast -
Ready, Set, Roman! - Community Products from the Project Infrastructure Teams (PITs) #1
February 17, 2026 01:00 PMSoftware and DataThis webinar will introduce the Roman Project Infrastructure Teams (PITs) selected by NASA to assist in the development of the software, simulations, and data pipelines that will enable Roman…View Webcast -
Little Red Dots as "Black Hole Stars"
February 11, 2026 03:00 PMColloquiaPerhaps the most stunning surprise revealed by JWST yet is a class of compact, red, high-redshift sources (z~2-9) found in virtually every image the telescope takes. The sheer numbers of these "Little…View Webcast -
Let Us Calculate: Humanity and the Project of AI
February 10, 2026 01:00 PMColloquiaAlongside astonishing advances in AI capabilities, a growing trend is emerging under the rubric of ethics and the “alignment problem,” as a response to the limitations, biases, and failures…View Webcast -
Ready, Set, Roman! - Get Started with the Roman Research Nexus
February 10, 2026 01:00 PMSoftware and DataLog in and get familiar with the newly launched Roman Research Nexus! Roman will deliver an estimated 20 PB of data in its primary 5 year mission. In just one month, Roman will generate roughly…View Webcast
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