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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Opening a New Frontier in Transient Science with the James Webb Space Telescope
May 14, 2025 07:00 PMLecturesSpeaker: Justin Pierel (STScI) With the launch of the James Webb Space Telescope (JWST), we have entered a new era of transient discovery and understanding. In a relatively short time JWST has expanded…View Webcast -
Inter+Stellar: Harnessing the Intersection Between Stars and the Interstellar Medium
May 12 through 16, 2025 12:00 AMSymposiaHistorically, stars and the ISM in the nearby Universe have often been studied individually. However, this past decade of research has shown that the most exciting advances in each field are powered by…View Webcast -
Observing the Circum(sub)stellar Environments and Atmospheres of the Lowest-Mass Stars, Brown Dwarfs, and Planets
May 7, 2025 03:00 PMColloquiaThe lowest-mass stars and substellar objects serve as a natural bridge between stars and planets, covering the peak of the initial mass function and representing the most common outcomes of star formation…View Webcast -
Spring Colloquium: Presentations from STScI Postdocs
April 30, 2025 03:00 PMColloquiaPresentations featuring Christiana Erba, Chamani Gunasekera, Daniel Maschmann, and Adam Smercina.View Webcast -
STScI Engineering and Technology Colloquium: Technology for HWO
April 28, 2025 10:00 AMColloquiaA special Engineering and Technology Colloquium featuring Bertrand Mennesson (Roman Deputy Project Scientist and HWO Pre-Formulation Scientist at JPL) and Shouleh Nikzad (JPL Fellow, Senior…View Webcast -
Pathway to a Post-Global Warming Future: Presenting Climate Science with Inspiration, Not (Only) Fear
April 8, 2025 10:00 AMColloquiaMany people, and especially young people, express despair when it comes to the topic of climate change, which is unsurprising given that the media often portrays our climate future as a choice between…View Webcast -
Animal, Mineral, Microbe: How the Interplay Between Abiotic and Biotic Processes Shapes Deep-Sea Chemoautotrophic Symbioses
April 4, 2025 12:00 PMLecturesLiving organisms evolve in response to one another, but also to the physical and chemical conditions in their habitat. Living things, via their activity, also shape the abiotic world. This is especially…View Webcast -
How to Reionize the Universe: Lessons from Low Redshift
April 2, 2025 03:00 PMColloquiaThe reionization of the intergalactic medium (IGM) at z > 6 is one of the major transformations in the universe’s history, but we do not yet know which galaxies were responsible for this event.…View Webcast -
Galaxy Clusters As Dark Matter Laboratories
March 26, 2025 03:00 PMColloquiaThe structure of dark halos carries signatures of their mass, dynamical state, and the nature of dark matter itself. Some of the most constraining signals can be found in the outskirts of galaxy clusters,…View Webcast -
Exploring the Solar System with the James Webb Space Telescope
February 27, 2025 08:00 PMLecturesSpeaker: Heidi Hammel, AURA The James Webb Space Telescope is revolutionizing our knowledge of the cosmos, from the most distant galaxies to objects right here in our own local neighborhood.…View Webcast -
Exoplanet Atmospheres in the Next Decade: Isotopes, Too Many Atmospheres, and Biosignatures
February 26, 2025 03:00 PMColloquiaIn this presentation, I will describe my very personal view of some of the directions in which I think the study of exoplanet atmospheres will go in the next decade, before the launch of HWO. This view…View Webcast -
Exoplanet Atmospheres Revealed: Insights from JWST Observations
February 19, 2025 03:00 PMColloquiaThe James Webb Space Telescope (JWST) is revolutionizing the field of exoplanet atmospheric science with its unprecedented stability and wavelength coverage. From revealing previously unexplored chemistry…View Webcast -
Toward Sustainable Research: Methods and Tools from Labos 1point5
February 18, 2025 10:00 AMColloquiaThe Paris agreement, adopted in 2015 by over 190 countries, targeted to "significantly reduce global greenhouse gas emissions with the aim of limiting global warming to 2 °C this century, while…View Webcast -
Spring Colloquium: Presentations from STScI Postdocs
February 12, 2025 03:00 PMColloquiaPresentations featuring Ilias Goovaerts, Macarena Garcia del Valle-Espinosa, Alexander Madurowicz, Katie Crotts, Rebecca Levy, and Alejandro Crespo Gomez.View Webcast -
What Biogeochemical Information Is Preserved in the Lipids of Extreme Archaea?
February 7, 2025 12:00 PMLecturesAll life as we know it builds cell membranes that serve as an essential barrier from the external environment and facilitate the flow of matter and energy. The lipid membrane composition and its isotope…View Webcast
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