Astronomy Cast Ep. 769: Little Red Dots

https://www.youtube.com/watch?v=vSVS2x-8eG4


Hosted by: Fraser Cain and Dr. Pamela L. Gay


Streamed live on Oct 20, 2025.


New instruments bring new mysteries, and when James Webb came on
line it uncovered a collection of strange, compact, bright
objects shifted deeply into the red end of the spectrum. These
were dubbed “Little red dots” or LRDs. And the astronomical
community continues to puzzle over what they are. When JWST first
peered into the distant past, it discovered the early universe
had a rash of little red dots. Their existence just 450 million
years after the big bang meant either galaxies were forming way
faster than anyone predicted, or something unimagined had been
found. 


 


This show is supported through people like you on
Patreon.com/AstronomyCast 


In this episode, we'd like to thank: Andrew Poelstra, BogieNet,
Brian Cagle, Burry Gowen, David, David Rossetter, David Truog,
Ed, Gerhard Schwarzer, Jason Kwong, Jeanette Wink, Michael
Purcell, Olger, Sergio Sancevero, Sergey Manouilov, Siggi
Kemmler, Stephen Veit


 


We've added a new way to donate to 365 Days of Astronomy to
support editing, hosting, and production costs. 


Just visit: https://www.patreon.com/365DaysOfAstronomy and donate
as much as you can!


Share the podcast with your friends and send the Patreon link to
them too! 


Every bit helps! Thank you!


------------------------------------


Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for
cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and
other awesomeness!


http://cosmoquest.org/Donate This show is made possible through
your donations. 


Thank you! (Haven't donated? It's not too late! Just click!)


------------------------------------


The 365 Days of Astronomy Podcast is produced by the Planetary
Science Institute. http://www.psi.edu


Visit us on the web at 365DaysOfAstronomy.org or email us at
info@365DaysOfAstronomy.org.