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Astronomy Cast

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Fraser Cain and Dr. Pamela Gay

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 an astronomer. Together Fraser and Pamela explore what is known and being discovered about the universe around us. Astronomy Cast is supported thru patreon.com/AstronomyCast.

#608

Ep. 218 REMASTER - Max Plank

Astronomy Cast - Ep. 218 REMASTER - Max Plank By Fraser Cain & Dr. Pamela Gay From Jan 31, 2011. It’s time for another action-packed double episode, where we meet a man and his mission. This time around its German physicist Max Planck, considered to be the father of quantum theory – he was later granted a Nobel Prize for just that discovery. Let’s take a trip back just over 100 years to learn about the man who changed our understanding of the very small. ... Read more

22 Jul 2024

28 MINS

28:56

22 Jul 2024

#607

Bonus Content: The week of too much news

In this bonus episode, we bring you behind the scenes audio from our June 10 pre-show discussion about the “far too much news” that occurred the week of June 3, 2024. ... Read more

15 Jul 2024

21 MINS

21:02

15 Jul 2024

#606

Ep. 725: Looking Ahead

Streamed live on Jun 24, 2024. Normally Pamela refuses to think about the future. But today, on our final episode before hiatus, she’s throwing out those rules. It’s like the PURGE! Here’s what we’re excited about for the future. Especially for the next couple of months until we return in September. This Episode is made possible thanks to our Patrons on Patreon. Join at the Galaxy Group level or higher to be listed in our YouTube videos. From Pamela: I also have a favor to ask - I'm working on a research project with my collaborator Sanlyn Buxener on what factors help and hinder people learning and doing science. Can you please take our survey? THANK YOU! - Pamela Join our Patreon: This video was made possible by the following Patreon members: - BogieNet - Stephen Veit - Jeanette Wink - Siggi Kemmler - Andrew Poelstra - Brian Cagle - David Truog - Ed - David - Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

01 Jul 2024

33 MINS

33:48

01 Jul 2024

#605

Ep. 724: Summer (Science & Sci Fi) Reads

Astronomy Cast Ep. 724: Summer (Science & Sci Fi) ReadsFraser & Pamela list their favorite books! Take notes! It’s almost time for our summer hiatus. A time to catch up on all that reading. We’ll give you some book recommendations, and what we’re hoping to read during the summer. Streamed live Jun 20, 2024. From Pamela: I also have a favor to ask - I'm working on a research project with my collaborator Sanlyn Buxener on what factors help and hinder people learning and doing science. Can you please take our survey? THANK YOU! Join our Patreon: This video was made possible by the following Patreon members: - BogieNet - Stephen Veit - Jeanette Wink - Siggi Kemmler - Andrew Poelstra - Brian Cagle - David Truog - Ed - David - Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

24 Jun 2024

31 MINS

31:11

24 Jun 2024

#604

Ep. 723: Exoplanets by the Numbers

Astronomy Cast Ep. 723: Exoplanets by the Numbers By Fraser Cain & Dr. Pamela Gay Streamed live on Jun 10, 2024. Astronomers have discovered thousands of exoplanets, revealing entirely new types of worlds that we just don’t have in the solar system. It’s enough to start getting a rough sense of what kinds of planets are out there. What’s the big picture? This Episode is made possible thanks to our Patrons on Patreon. Join at the Galaxy Group level or higher to be listed in our YouTube videos. This video was made possible by the following Patreon members: - BogieNet - Stephen Veit - Jeanette Wink - Siggi Kemmler - Andrew Poelstra - Brian Cagle - David Truog - Ed - David - Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

17 Jun 2024

29 MINS

29:15

17 Jun 2024

#603

Ep. 722: Weather on Exoplanets

Astronomy Cast Ep. 722: Weather on Exoplanets By Fraser Cain & Dr. Pamela Gay Streamed live on Jun 3, 2024. Here’s a familiar question: How’s the weather? We’re familiar with the weather on Earth and telescopes and missions are watching the weather on other planets in the Solar System. But for the first time in history, astronomers can now answer that question for exoplanets, located light-years away from us. This Episode is made possible thanks to our Patrons on Patreon. Join at the Galaxy Group level or higher to be listed in our YouTube videos. This video was made possible by the following Patreon members: - BogieNet - Stephen Veit - Jeanette Wink - Siggi Kemmler - Andrew Poelstra - Brian Cagle - David Truog - Ed - David - Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

10 Jun 2024

29 MINS

29:48

10 Jun 2024

#602

Ep. 721: Rogue Planets

Astronomy Cast Ep. 721: Rogue Planets By Fraser Cain & Dr. Pamela Gay Streamed live on May 20, 2024. Most of the exoplanets we’ve found are around stars, where they belong. But a few have been found free-floating in interstellar space. The evidence is growing that there are a lot of them out there, maybe even more than planets with stars. How do they form and how can we learn more about them? ... Read more

27 May 2024

29 MINS

29:49

27 May 2024

#601

Ep. 720: Galaxy Series - Elliptical Galaxies

Astronomy Cast - Ep. 720: Galaxy Series - Elliptical Galaxies by Fraser Cain & Dr. Pamela Gay Streamed live on Apr 30, 2024. Our galaxy series continues with elliptical galaxies. Unlike other types, these are large, smooth with very few distinguishing features. They’re filled with red and dead stars, a clue to their evolution. This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra Brian Cagle David Truog Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

20 May 2024

28 MINS

28:32

20 May 2024

#600

Ep. 719: Galaxy Series - Spiral Galaxies

Astronomy Cast Ep. 719: Galaxy Series - Spiral Galaxies by Fraser Cain & Dr. Pamela Gay Streamed live on Apr 30, 2024. Our galaxy series continues, on to spiral galaxies. In fact, you’re living in one right now, but telescopes show us the various shapes and sizes these galaxies come in. Thanks to JWST, we’re learning how these spirals got big, early on in the Universe. This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra David Truog Brian Cagle Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

13 May 2024

33 MINS

33:03

13 May 2024

#599

Ep. 718: Galaxy Series - Dwarf Galaxies

Astronomy Cast Ep. 718: Galaxy Series - Dwarf Galaxies by Fraser Cain & Dr. Pamela Gay Streamed live on Apr 30, 2024. It’s time to begin a new mini-series, where we’ll look at different classes of galaxies. Today, we’ll start with the dwarf galaxies, which flock around larger galaxies like the Milky Way. Are they the building blocks for modern structures? This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra Brian Cagle David Truog Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

06 May 2024

30 MINS

30:57

06 May 2024

#598

Ep. 717: Understanding the Ages of Distant Cosmic Objects

Astronomy Cast Ep. 717: Understanding the Ages of Distant Cosmic Objects by Fraser Cain & Dr. Pamela Gay Streamed live on Apr 22, 2024. How old is that star? That planet? That nebula? Figuring out the ages of astronomical objects is surprisingly challenging. Fortunately, astronomers have developed a series of techniques they can use to work out the ages of stuff. This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra Brian Cagle David Truog Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

29 Apr 2024

29 MINS

29:30

29 Apr 2024

#597

Ep. 716 - The God**** Particle - Remembering Peter Higgs

Astronomy Cast Ep. 716 - The God**** Particle - Remembering Peter Higgs by Fraser Cain & Dr. Pamela Gay Streamed live on Apr 15, 2024. Last week, we learned about the death of Peter Higgs, a physicist and discoverer of the particle that bears his name. The Large Hadron Collider was built to find and describe the particle. Today, we’ll look back at the life of Peter Higgs and his particle. This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra Brian Cagle David Truog Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

22 Apr 2024

28 MINS

28:43

22 Apr 2024

#596

Ep. 715: Total Eclipse of the Science: Experiments During the Eclipse

Astronomy Cast Ep. 715: Total Eclipse of the Science: Experiments During the Eclipse by Fraser Cain & Dr. Pamela Gay Streamed live April 1, 2024. NO JOKES! How to watch a solar eclipse and do some science! The next great eclipse is upon us, with viewers across North America witnessing the moon passing in front of the Sun. It’s an amazing experience, but also an opportunity to do science. Let’s talk about what we can learn from this momentous event. This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Polestra Brian Cagle David Truog Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

08 Apr 2024

32 MINS

32:18

08 Apr 2024

#595

Ep. 714: Orbital Resonances

Astronomy Cast Ep. 714: Orbital Resonances by Fraser Cain & Dr. Pamela Gay Streamed live on Mar 25, 2024. Several of the planets and moons in the Solar System are in orbital resonance, orbiting in a geometric lockstep. And not just the Solar System, astronomers have found the same resonances in other star systems. This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra Brian Cagle David Truog Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

01 Apr 2024

27 MINS

27:56

01 Apr 2024

#594

Ep. 713: Solar System Volcanoes

Astronomy Cast Ep. 713: Solar System Volcanoes by Fraser Cain & Dr. Pamela Gay Streamed live on Mar 18, 2024. Last week was one of the most exciting meetings we’ve seen from the Lunar and Planetary Science Conference, with hundreds of announcements and discoveries from various missions. One theme kept coming up, the Solar System is more volcanically active than we thought. Today, we’ll explore volcanism on other worlds. This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra Brian Cagle David Truog Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

25 Mar 2024

33 MINS

33:52

25 Mar 2024

#593

Ep. 712: How Peer Review Fails

Astronomy Cast Ep. 712: How Peer Review Fails by Fraser Cain & Dr. Pamela Gay Streamed live on Mar 11, 2024. You’ve probably heard that the best kind of science is peer-reviewed research published in a prestigious journal. But peer review has problems of its own. We’ll talk about that today. This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra Brian Cagle David Truog Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

18 Mar 2024

38 MINS

38:36

18 Mar 2024

#592

Ep. 711: NASA Innovative Advanced Concepts (NIAC)

Astronomy Cast Ep. 711: NASA Innovative Advanced Concepts (NIAC) by Fraser Cain & Dr. Pamela Gay Streamed live March 4, 2024. NASA works on many missions using tried and true technology, but they also invest in creative ideas that could drive the future of space exploration. It’s called NASA’s Innovative Advanced Concepts or NIAC. This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra Brian Cagle David Truog Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

11 Mar 2024

31 MINS

31:55

11 Mar 2024

#591

Ep. 710: NASA's Commercial Lunar Payload Services (CLPS) Program

Astronomy Cast Ep. 710: NASA's Commercial Lunar Payload Services (CLPS) Program by Fraser Cain & Dr. Pamela Gay Streamed live on Feb 26, 2024. In the olden days, NASA developed its missions using a variety of in-house engineers and external suppliers. As more commercial companies are targeting the Moon, NASA is working with partners to deliver its payloads to the lunar surface. Today let’s talk about NASA’s Commercial Lunar Payload Program. This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra Brian Cagle David Truog Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

04 Mar 2024

35 MINS

35:55

04 Mar 2024

#590

Ep. 709: Space Weapons

Astronomy Cast Ep. 709: Space Weapons by Fraser Cain & Dr. Pamela Gay Streamed live on Feb 19, 2024. [My apologies for Fraser’s audio dropouts. We’re not sure how it happened as it wasn’t happening at his studio. Audio is a black art, IMHO. Rich) Last week we learned that Russia might be planning nuclear weapons to take out satellites in space. What is the current and future possibility of weapons in space and what are the treaties designed to prevent them? This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit (rhymes with right) Jeanette Wink Siggi Kemmler Andrew Poelstra Brian Cagle David Truog Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

26 Feb 2024

32 MINS

32:17

26 Feb 2024

#589

Ep. 708: What Goes Into Sample Return Missions From Asteroids & Comets?

Astronomy Cast Ep. 708: What Goes Into Sample Return Missions From Asteroids & Comets? by Fraser Cain & Dr. Pamela Gay Streamed live Feb 12, 2024. Last week we talked about sample return missions from the Moon and Mars, but scientists have retrieved samples from other objects in the Solar System, including comets and asteroids. What does it take to return a piece of rock from space, and what have we learned so far? This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit ( rhymes with right) Jeanette Wink Siggi Kemmler Andrew Poelstra Brian Cagle David Truog Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

19 Feb 2024

36 MINS

36:25

19 Feb 2024

#588

Ep. 707: What Goes Into A Sample Return Mission? Moon & Mars

Astronomy Cast Ep. 707: What Goes Into A Sample Return Mission? Moon & Mars by Fraser Cain & Dr. Pamela Gay Streamed live on Feb 5, 2024. We’ve sent robots to other worlds, but the amount of science we can deploy to another planet can’t compare with the vast science labs we have on Earth. That’s why more and more missions are for a sample return, bringing pieces of alien worlds back to Earth, where we study them with proper equipment. This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit ( rhymes with right) Jeanette Wink Siggi Kemmler Andrew Poelstra Brian Cagle David Truog Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

12 Feb 2024

32 MINS

32:44

12 Feb 2024

#587

Ep. 706: China’s Space Program

Astronomy Cast Ep. 706: China’s Space Program by Fraser Cain & Dr. Pamela Gay Streamed live on Jan 30, 2024. We’re so familiar with NASA’s exploration efforts in space, but you might be surprised to learn that China launches almost as many rockets as the US. They’ve got their own space exploration program that could soon bring humans to the surface of the Moon. Let’s give a brief overview of China’s space exploration plans. This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra David Truog Brian Cagle Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

05 Feb 2024

38 MINS

38:24

05 Feb 2024

#586

Ep. 705: Water Worlds - Looking For Life Beyond Earth

Astronomy Cast Ep. 705: Water Worlds - Looking For Life Beyond Earth by Fraser Cain & Dr. Pamela Gay Streamed live January 17, 2024. Wherever we find liquid water on Earth, we find life, so it makes sense to search for water across the Universe, and hopefully we can find evidence of life. But what about worlds which are completely covered in water, oceans hundreds of kilometers deep. Can there be too much water? This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra David Truog Brian Cagle Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

22 Jan 2024

32 MINS

32:26

22 Jan 2024

#585

Ep. 704: NASA's Juno Releases New Images

Astronomy Cast Ep. 704: NASA's Juno Releases New Images by Fraser Cain & Dr. Pamela Gay Streamed live January 8, 2024. NASA’s Juno spacecraft has completed dozens of flybys of Jupiter, seeing the planet from many angles and delivering some of the most beautiful images we’ve ever seen of the Jovian world. Now it’s focusing in on Io, sending home images of the tiny volcanic world from just 1,500 km away. And the best is yet to come. This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra David Truog Brian Cagle Ed David Gerhard Schwarzer THANK YOU! - Fraser and Dr. Pamela ... Read more

15 Jan 2024

29 MINS

29:56

15 Jan 2024

#584

Ep. 703: Solar Maximum of Doom? Maybe

Astronomy Cast Ep. 703: Solar Maximum of Doom? Maybe by Fraser Cain & Dr. Pamela Gay Streamed live on Dec 20, 2023. Solar cycle 25 is shaping up to be a doozy, with plenty of flares and coronal mass ejections blasting off the Sun. As the solar activity continues to rise, how are things shaping up? This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra David Truog Brian Cagle Ed Gerhard Schwarzer David Nicholas Cunningham THANK YOU! - Fraser and Dr. Pamela ... Read more

08 Jan 2024

33 MINS

33:00

08 Jan 2024

#583

Ep. 702: Moonshot 2024 - Go or No Go?

Astronomy Cast Ep. 702: Moonshot 2024 - Go or No Go? by Fraser Cain & Dr. Pamela Gay Streamed live on Dec 11, 2023. With Artemis 1 completing its robotic flight around the Moon, we know that the SLS works. Next comes Artemis 2, with a crew of astronauts flying past the Moon. If that’s successful, we could see humans set foot on the Moon in December 2025. But there is a long list of challenges to consider that could delay things considerably. Go or no go for launch‽ This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra David Truog Brian Cagle Ed Gerhard Schwarzer David Nicholas Cunningham THANK YOU! - Fraser and Dr. Pamela ... Read more

18 Dec 2023

32 MINS

32:01

18 Dec 2023

#582

Ep. 701: Space Science We Look Forward to in the Next 700 Episodes

Astronomy Cast Ep. 701: Space Science We Look Forward to in the Next 700 Episodes by Fraser Cain & Dr. Pamela Gay Streamed live on Dec 4, 2023. Last week we looked back at some of the ideas that science has changed its mind about. This week we look forward, into the future, at some of the big ideas that astronomers are making progress in. What space science are we looking forward to? This video was made possible by the following Patreon members: Jordan Young BogieNet Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra David Truog Brian Cagle Ed Gerhard Schwarzer David THANK YOU! - Fraser and Dr. Pamela ... Read more

11 Dec 2023

33 MINS

33:12

11 Dec 2023

#581

Ep. 700: The Things We Got Wrong

Astronomy Cast Ep. 700: The Things We Got Wrong by Fraser Cain & Dr. Pamela Gay Streamed live on Nov 27, 2023. Astronomers talk about all the amazing discoveries they’re making but sometimes, it turns out, they were wrong. After decades and centuries of discoveries, how have they changed their minds? This video was made possible by the following Patreon members: Jordan Young Stephen Veit Jeanette Wink Siggi Kemmler Andrew Poelstra Ed BogieNet Brian Cagle David Truog Gerhard Schwarzer David Nicholas Cunningham THANK YOU! - Fraser and Dr. Pamela ... Read more

04 Dec 2023

29 MINS

29:24

04 Dec 2023

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#608

Ep. 218 REMASTER - Max Plank

#607

Bonus Content: The week of too much news

#606

Ep. 725: Looking Ahead

#605

Ep. 724: Summer (Science & Sci Fi) Reads

#604

Ep. 723: Exoplanets by the Numbers

#603

Ep. 722: Weather on Exoplanets

#602

Ep. 721: Rogue Planets

#601

Ep. 720: Galaxy Series - Elliptical Galaxies

#600

Ep. 719: Galaxy Series - Spiral Galaxies

#599

Ep. 718: Galaxy Series - Dwarf Galaxies

#598

Ep. 717: Understanding the Ages of Distant Cosmic Objects

#597

Ep. 716 - The God**** Particle - Remembering Peter Higgs

#596

Ep. 715: Total Eclipse of the Science: Experiments During the Eclipse

#595

Ep. 714: Orbital Resonances

#594

Ep. 713: Solar System Volcanoes

#593

Ep. 712: How Peer Review Fails

#592

Ep. 711: NASA Innovative Advanced Concepts (NIAC)

#591

Ep. 710: NASA's Commercial Lunar Payload Services (CLPS) Program

#590

Ep. 709: Space Weapons

#589

Ep. 708: What Goes Into Sample Return Missions From Asteroids & Comets?

#588

Ep. 707: What Goes Into A Sample Return Mission? Moon & Mars

#587

Ep. 706: China’s Space Program

#586

Ep. 705: Water Worlds - Looking For Life Beyond Earth

#585

Ep. 704: NASA's Juno Releases New Images

#584

Ep. 703: Solar Maximum of Doom? Maybe

#583

Ep. 702: Moonshot 2024 - Go or No Go?

#582

Ep. 701: Space Science We Look Forward to in the Next 700 Episodes

#581

Ep. 700: The Things We Got Wrong