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Free Public Lectures Online

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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  • Webb Science

    October 3, 2023 Lectures

    Speaker: Nimisha Kumari (Space Telescope Science Institute) Please note the lecture title is tentative and subject to change.