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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The Fate of Volatiles Through Earth's Accretion and the Moon-forming Giant Impact
December 6, 2024 12:00 PMLecturesDelivery and loss of volatile elements and compounds (such as water, carbon, nitrogen and the noble gases) during Earth’s accretion set the stage for the rest of our planet's history. Volatiles…View Webcast -
Hunting the Stellar Undead
December 3, 2024 08:00 PMLecturesSpeaker: Gregory Sivakoff (University of Alberta) Stars are born, and stars die, but not all stars fade quietly into the night after their death. In fact, some are even more spectacular in their death…View Webcast -
The Invisible Universe and the Power of Citizen Science
November 14, 2024 02:30 PMLecturesSpeaker: Eleni Vardoulaki (National Observatory of Athens) What's in the invisible universe? How can we best observe it? The international collaboration Evolutionary Map of the Universe (EMU)…View Webcast -
Lessons Learned from the James Webb Space Telescope
November 12, 2024 10:00 AMColloquiaThe James Webb Space Telescope (JWST), launched on December 25, 2021, is NASA’s successor mission to the Hubble Space Telescope. JWST has been designed and developed to observe “first light”…View Webcast -
Strange New Worlds
November 1, 2024 12:00 PMLecturesIs there a universal divide between planets with and without atmospheres? Is it based on their incident fluxes and escape velocities? By studying exoplanets that span the cosmic shoreline, we have begun…View Webcast -
Accurate Flux Calibration in the Era of Space Astronomy and All-Sky Surveys
October 22 through 25, 2024 12:01 AMWorkshopsAdvances in space telescope technology and all-sky surveys are driving the need for more precise and accurate flux calibration across the observable spectrum. The Space Telescope Science Institute…View Webcast -
YAE In-Person Family STEM Forum
October 17, 2024 05:00 PMCommunity EventsPlease join us in-person to learn more about astronomy during our Youth for Astronomy and Engineering Program event "STEM Forum" followed by an opportunity to engage in hands-on activities and…View Webcast -
Enceladus's Plume-Derived 'Snow' Fall
October 4, 2024 12:00 PMLecturesTectonic pit chains are geologic landforms observed on many solar system bodies, and in the outer solar system they are most clearly observed on Enceladus. Pit chains form above a dilational fault or extensional…View Webcast -
Cosmic Acceleration in the Roman Era
October 2, 2024 03:00 PMColloquiaCosmic acceleration is one of the most surprising cosmological discoveries of the past century. Even the "simplest" explanations require new, cosmologically dominant energy components with exotic…View Webcast -
White Dwarf Supernovae
September 25, 2024 03:00 PMColloquiaType Ia supernovae (SN Ia) play a starring role in our view of the Universe. Observations of SN Ia led to two cosmological surprises: the discovery of the accelerating Universe and the Hubble Constant…View Webcast -
Fall Colloquium: Presentations from Incoming STScI Postdocs
September 18, 2024 03:00 PMColloquiaPresentations featuring Paul Bennet, Farhan Hasan, Jegug Ih, Ryan Richards Vaught, and Mans Holmberg.View Webcast -
The Thirty Meter Telescope: Progress and Prospects
September 11, 2024 03:00 PMColloquiaThe Thirty Meter Telescope is a top-ranked priority of the Astro 2020 Decadal Survey because its combination of very large aperture and adaptive optics opens up vast areas for unique observational work…View Webcast -
High Performance Infrared Detectors: The Infrared Focal Plane Arrays in NASA’s Flagship Astrophysics Missions
September 10, 2024 10:00 AMColloquiaInfrared astronomy is dependent on hybrid CMOS infrared focal plane arrays (FPAs). The most advanced FPAs are those that use HgCdTe as the detector material. This talk will start with a pedagogical…View Webcast -
Hot, Warm, Cold, and Frigid Exoplanets from the Nancy Grace Roman Space Telescope
September 5, 2024 03:30 PMColloquiaThe Nancy Grace Roman Space Telescope, or Roman, is NASA’s next large astrophysics mission, due to be launched in late 2026. Roman will have a wavelength range, aperture, and angular resolution similar…View Webcast -
NASA's Next Big Thing: The Nancy Grace Roman Space Telescope
September 3, 2024 08:00 PMLecturesSpeaker: Ori Fox (Space Telescope Science Institute) NASA's upcoming Nancy Grace Roman Space Telescope is readying for launch in late 2026. Roman will be able to survey the sky 1,000 times…View Webcast
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