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Astronomy Cast

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Jun 5, 2023

Astronomy Cast Ep. 684: Too Big, Too Soon: Massive Early Galaxies Defy Expectations

by Fraser Cain & Dr. Pamela Gay

Streamed live on May 29, 2023.

One of JWST’s top jobs is to peer deeper into the Universe than ever before, watching as the first galaxies came together. Surprisingly, astronomers found galaxies that seemed much more mature than expected, much earlier than it was believed possible. What’s going on and what does it mean for cosmology?


This video was made possible by the following Patreon members:

Burry Gowen

Stephen Veit

Jordan Young

Venkatesh Chary

Andrew Poelstra

Brian Cagle

David Truog

Jeanette Wink

Gerhard Schwarzer



THANK YOU! - Fraser and Dr. Pamela