Ep. 682: Ultra-Diffuse Galaxies & Dark Matter
Astronomy Cast22 Touko 2023

Ep. 682: Ultra-Diffuse Galaxies & Dark Matter

Astronomy Cast Ep. 682: Ultra-Diffuse Galaxies & Dark Matter by Fraser Cain & Dr. Pamela Ga Streamed live on May 15, 2023. Astronomers first noticed the strange behaviors of rotating galaxies almost 100 years ago, suggesting there's an invisible dark matter hold them together with gravity. Or maybe we just don't understand how gravity works at the largest scales. Observations are much better now, and astronomers have found examples of galaxies that are almost entirely made of dark matter. Does this tell us anything? 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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Ep. 787: Evolved Stars (They're not dead yet!)

Ep. 787: Evolved Stars (They're not dead yet!)

Astronomy Cast Ep. 787: Evolved Stars (They're not dead yet!) By Fraser Cain & Dr. Pamela Gay Streamed live on Mar 16, 2026. Main sequence stars spend most of their time being… normal. Fusing hydrogen...

23 Maalis 30min

Ep. 786: Wolf-Rayet Stars

Ep. 786: Wolf-Rayet Stars

Astronomy Cast Ep. 786: Wolf-Rayet Stars By Fraser Cain & Dr. Pamela Gay Streamed live on Mar 9, 2026. You think the Sun is a terrifying ball of fire and fury? Wait until you learn about today's topic...

16 Maalis 34min

Ep. 785: Magnetars

Ep. 785: Magnetars

Astronomy Cast Ep. 785: Magnetars By Fraser Cain & Dr. Pamela Gay Streamed live March 6, 2026. Magnetars are a special type of neutron star with physics that defy comprehension. Magnetic fields so pow...

9 Maalis 29min

Ep. 784: Pulsar-Powered Science

Ep. 784: Pulsar-Powered Science

Astronomy Cast Ep. 784: Pulsar-Powered Science By Fraser Cain & Dr. Pamela Gay Streamed live on Feb 16, 2026. Pulsars are dead stars and fascinating in their own right, but astronomers can use their p...

2 Maalis 33min

Ep. 783: Cataclysmic Variable Stars

Ep. 783: Cataclysmic Variable Stars

Astronomy Cast Ep. 783: Cataclysmic Variable Stars By Fraser Cain & Dr. Pamela Gay Streamed live on Feb 16, 2026. There are many types of variable stars. Today we're gonna talk about cataclysmic varia...

23 Helmi 30min

Ep. 782: Luminous Fast Blue Optical Transients

Ep. 782: Luminous Fast Blue Optical Transients

Astronomy Cast Ep. 782: Luminous Fast Blue Optical Transients By Fraser Cain & Dr. Pamela Gay Streamed live on Feb 13, 2026. Modern astronomy has found that the Universe can surprise us. Here's one wh...

16 Helmi 27min

Ep. 781: Awakening Black Holes

Ep. 781: Awakening Black Holes

Astronomy Cast Ep. 781: Awakening Black Holes By Fraser Cain & Dr. Pamela Gay Streamed live on Feb 2, 2026. One long standing mystery in astronomy were the quasars. Incomprehensible energy blasting ou...

9 Helmi 31min

Ep. 780: When Asteroids & Comets Attack!

Ep. 780: When Asteroids & Comets Attack!

Astronomy Cast Ep. 780: When Asteroids & Comets Attack! By Fraser Cain & Dr. Pamela Gay Streamed live on Jan 26, 2026. We live in a cosmic shooting gallery. It's not a matter of "if" but "when"! Dinos...

2 Helmi 32min

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