Free Online Lectures

Each event features a noted scientist who discusses a different cosmic topic. These lectures will be presented with a livestream to YouTube, and questions can be asked in the YouTube chat. The recordings will also be posted on our YouTube channel and accessible from this page.

Lectures are typically held at 8 PM EDT (UTC -4) during Daylight Time and 8 PM EST (UTC -5) during Standard Time, unless otherwise noted.

Mosaic of Hubble imagery

Missed the lecture? View our recordings:

YouTube playlist and Webcast Archive 

Visit our outreach websites:

HubbleSite.org and WebbTelescope.org

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Past Lectures

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Results: 6
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  1. The Total Solar Eclipse of April 2024

    March 5, 2024 Lectures

    Speakers: Michael Kirk (NASA Goddard Space Flight Center) and John Maple (Space Telescope Science Institute) On Monday, April 8, 2024, a total solar eclipse will pass over Mexico, the United States,...

  2. Gamma Ray Bursts: Spectacular Explosions from the Distant Past

    April 2, 2024 Lectures

    Speaker: Giovanna Pugliese (API / University of Amsterdam)

  3. Stellar Astrometry in Search of Dark Matter

    May 7, 2024 Lectures

    Speaker: Eduardo Vitral (Space Telescope Science Institute)

  4. Webb Observations of Planet Formation

    June 4, 2024 Lectures

    Speaker: Nicole Arulanantham (Space Telescope Science Institute)

  5. Webb Space Telescope

    August 6, 2024 Lectures

    Speaker: TBD

  6. Roman Space Telescope

    September 3, 2024 Lectures

    Speaker: TBD