Astronomy Cast Ep. 683: Cosmic Dawn

The 365 Days of Astronomy

https://www.youtube.com/watch?v=liamHeGTrOg

Streamed live on May 22, 2023.

After the cosmic microwave background radiation was released, the Universe returned to darkness, cloaked in this clouds of primordial hydrogen and helium. Gravity pulled these vast clouds into the first stars, and then the first galaxies. This is Cosmic Dawn, and JWST will help us probe this mysterious time in the Universe.

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

David

THANK YOU! - Fraser and Dr. Pamela

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