Astronomy Cast
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Astronomy Cast
Take a fact-based journey through the cosmos. Tune in to hear weekly discussions on astronomical topics ranging from planets to cosmology. Hosted by Fraser Cain (Universe Today) and Dr. Pamela L. Gay (Planetary Science Institute), this show brings the questions of an avid astronomy lover direct to a...
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Ep. 769: Little Red Dots
Astronomy Cast Ep. 769: Little Red Dots
By Fraser Cain & Dr. Pamela Gay
Streamed live on Oct 20, 2025.
New instruments bring new mys...
Ep. 768: Comets' Unpredictability
Astronomy Cast Ep. 768: Comets' Unpredictability
By Fraser Cain & Dr. Pamela Gay
Streamed live on Oct 13, 2025.
So it's been decades...
Ep. 767: Black Holes in Extreme Circumstances
Astronomy Cast Ep. 767: Black Holes in Extreme Circumstances
By Fraser Cain & Dr. Pamela Gay
Hosted by: Fraser Cain and Dr. Pamela L. Gay<...
Ep. 766: How Spacecraft End
Astronomy Cast Ep. 766: How Spacecraft End
By Fraser Cain & Dr. Pamela Gay
End-of-Life Planning for Your Spacecraft!
Streamed live O...
Ep. 765: Rockets vs The Environment
Astronomy Cast Ep. 765: Rockets vs The Environment
By Fraser Cain & Dr. Pamela Gay
Streamed live on Sep 22, 2025.
We don't launch a...
Ep. 764: Cleared For Launch!
Astronomy Cast Ep. 764: Cleared For Launch!
By Fraser Cain & Dr. Pamela Gay
Streamed live September 17, 2025.
This week, we look at...
Ep. 763: Interstellar Comets
Astronomy Cast Ep. 763: Interstellar Comets
By Fraser Cain & Dr. Pamela Gay
Streamed live Sep 8, 2025.
Welcome to the first episode...
Ep. 762: Science in Crisis - NASA’s New Budget
Astronomy Cast Ep. 762: Science in Crisis - NASA's New Budget
By Fraser Cain & Dr. Pamela Gay
Streamed live on Jun 30, 2025.
Hosted...
Ep. 761: It's Here! The Vera Rubin Observatory
Astronomy Cast Ep. 761: It's Here! The Vera Rubin Observatory
By Fraser Cain & Dr. Pamela Gay
Streamed live June 25, 2025.
The time...
Ep. 760: What to Look For This Summer
Astronomy Cast Ep. 760: What to Look For This Summer
By Fraser Cain & Dr. Pamela Gay
Streamed live on Jun 16, 2025.
It's almost time...
Ep. 759: The Commercial Space Program
Astronomy Cast Ep. 759: The Commercial Space Program
By Fraser Cain & Dr. Pamela Gay
Streamed live on Jun 9, 2025.
Humanity has turn...
Ep. 758: Non-Roving Rovers
Astronomy Cast Ep. 758: Non-Roving Rovers
By Fraser Cain & Dr. Pamela Gay
Streamed live on May 26, 2025.
Some of our favorite robots...
Ep. 757: CubeSats
Astronomy Cast Ep. 757: CubeSats
By Fraser Cain & Dr. Pamela Gay
Streamed live on May 19, 2025.
Computers are getting smaller, faste...
Ep. 756: SphereX
Astronomy Cast Ep. 756: SphereX
By Fraser Cain & Dr. Pamela Gay
Streamed live on May 12, 2025.
NASA's newly launched SphereX mission...
Ep. 755: Intermediate Mass Black Holes
Astronomy Cast Ep. 755: Intermediate Mass Black Holes
By Fraser Cain & Dr. Pamela Gay
Streamed live on May 5, 2025.
Hosted by: Frase...
Ep. 754: K2-18b
Astronomy Cast Ep. 754: K2-18b
By Fraser Cain & Dr. Pamela Gay
Streamed live on Apr 28, 2025.
You've heard the news! Astronomers are...
Ep. 753: Why is the Moon's South Pole So Interesting?
Astronomy Cast Ep. 753: Why is the Moon's South Pole So Interesting?
By Fraser Cain & Dr. Pamela Gay
Streamed live on Apr 21, 2025.
...
Ep. 752: Should We Go to the Moon or Mars Next?
Astronomy Cast Ep. 752: Should We Go to the Moon or Mars Next?
By Fraser Cain & Dr. Pamela Gay
Streamed live on Apr 16, 2025.
Hosted...
Ep. 751: Vacuum Energy
Astronomy Cast Ep. 751: Vacuum Energy
By Fraser Cain & Dr. Pamela Gay
Streamed live on Apr 7, 2025.
Hosted by: Fraser Cain and Dr. P...
Ep. 750: Supernova Early Warning System
Astronomy Cast Ep. 750: Supernova Early Warning System
By Fraser Cain & Dr. Pamela Gay
Streamed live on Mar 31, 2025.
Hosted by: Fra...
Ep. 749: Dark Energy Changing Over Time
Astronomy Cast Ep. 749: Dark Energy Changing Over Time
By Fraser Cain & Dr. Pamela Gay
Streamed live on Mar 24, 2025.
The Hubble Ten...
Ep. 748: Fast Radio Bursts
Astronomy Cast Ep. 748: Fast Radio Bursts
By Fraser Cain & Dr. Pamela Gay
Streamed live on Mar 17, 2025.
For the briefest of moments...
Ep. 747: Rogue Planets
Streamed live on Mar 10, 2025.
Hosted by: Fraser Cain and Dr. Pamela L. Gay
Most planets orbit stars. That's the rule, right? Well, maybe...
Ep. 746: Dust Storms
Astronomy Cast Ep. 746: Dust Storms
By Fraser Cain & Dr. Pamela Gay
Streamed live Feb 24, 2025.
We have dust storms on Earth and of...
Ep. 745: How We Know If Asteroids Will Attack
Astronomy Cast Ep. 745: How We Know If Asteroids Will Attack
By Fraser Cain & Dr. Pamela Gay
Streamed live Feb 20, 2025.
I'm sure yo...
Ep. 744: Lunar Time
Astronomy Cast Ep. 744: Lunar Time
By Fraser Cain & Dr. Pamela Gay
Streamed live on Feb 10, 2025.
What time is it? OK, fine, what ti...
Ep. 741: Technosignatures
Astronomy Cast Ep. 741: Technosignatures
By Fraser Cain & Dr. Pamela Gay
Streamed live on Jan 20, 2025.
As humanity developed more a...
Ep. 740: Sneaky Stars!
Astronomy Cast Ep. 740: Sneaky Stars!
By Fraser Cain & Dr. Pamela Gay
Streamed live on Jan 13, 2025.
Why stars can't be trusted!
Ep. 739: Drones!
Astronomy Cast Ep. 740: Drones!
By Fraser Cain & Dr. Pamela Gay
Streamed live January 9, 2025.
From little Ingenuity to the future F...
Ep. 736: Gift Guide 2024
Astronomy Cast Ep. 736: Gift Guide 2024
By Fraser Cain & Dr. Pamela Gay
Streamed live on Dec 2, 2024
It's time for our Holiday Gift...
Ep. 735: Albert Einstein
Astronomy Cast Ep. 735: Albert Einstein
By Fraser Cain & Dr. Pamela Gay
Streamed live on Nov 25, 2024.
Last week we talked about the...
Ep. 734: The Einstein Mission
Astronomy Cast Ep. 734: The Einstein Mission
By Fraser Cain & Dr. Pamela Gay
Streamed live on Nov 11, 2024.
Hosted by: Fraser Cain a...
Ep. 733: Euclid Of Alexandria
Astronomy Cast - Ep. 733: Euclid Of Alexandria
By Fraser Cain & Dr. Pamela Gay
Streamed live on Nov 5, 2024.
Last week we talked abo...
Ep. 732: The Euclid Telescope
Astronomy Cast Ep. 732: The Euclid Telescope
By Fraser Cain & Dr. Pamela Gay
Streamed live on Oct 28, 2024.
Let's look at the Euclid...
Ep. 731: Neil Gehrels
Astronomy Cast Ep. 731: Neil Gehrels
By Fraser Cain & Dr. Pamela Gay
Streamed live on Oct 21, 2024.
Last week we talked about the Ne...
Ep. 729: The James Webb Space Telescope
Astronomy Cast Ep. 729: The James Webb Space Telescope
By Fraser Cain & Dr. Pamela Gay
Streamed live on Sep 30, 2024.
Let's talk abo...
Ep. 728: Solar Scientist Eugene Parker
Astronomy Cast Ep. 728: Solar Scientist Eugene Parker
By Fraser Cain & Dr. Pamela Gay
Streamed live on Sep 23, 2024.
Last week, we t...
Ep. 727: Parker Solar Probe
Astronomy Cast Ep. 727: Parker Solar Probe
By Fraser Cain & Dr. Pamela Gay
Streamed live on Sep 16, 2024.
Let's look over the long l...
Ep. 726: Looking Back Over The Summer
Astronomy Cast Ep. 726: Looking Back Over The Summer
By Fraser Cain & Dr. Pamela Gay
Streamed live Sep 9, 2024.
We made all sorts of...
Ep. 173: Herschel Space Observatory - REMASTER
Astronomy Cast Ep. 173: Herschel Space Observatory - REMASTER
By Fraser Cain & Dr. Pamela Gay
From January 18, 2009.
Last week we ta...