The Space Telescope Science Institute in Baltimore, Maryland has managed science operations for the Hubble Space Telescope since 1990 and will do the same for the James Webb Space Telescope (JWST). It’s safe to say they hold a wealth of knowledge on the Universe from gravitational waves to armchair astrophysics.
Their lecture series is free to public and features a variety of space topics. On August 2nd they have a live lecture on First Observations from Webb. While we wait for the JWST to be fully commission, there are 90 lectures sitting in their archives just waiting for a good binge watch.