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 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.
- Update frequency
- every 7 days
- Average duration
- 31 minutes
- Episodes
- 644
- Years Active
- 2006 - 2025
Ep. 644: Is Earth… Normal?
Astronomy Cast Ep. 644: Is Earth… Normal? by Fraser Cain & Dr. Pamela Gay We've now discovered thousands of exoplanets, we're learning more and more about the kinds of planetary systems there are out…
00:31:37 |
Mon 30 May 2022
Ep. 643: Sagittarius A*
Astronomy Cast Ep. 643: Sagittarius A* by Fraser Cain & Dr. Pamela Gay All the waiting is over, we've finally seen the image of the event horizon from the supermassive black hole at the heart of the …
00:29:13 |
Tue 17 May 2022
Ep. 642: Is the Sun... Normal?
Astronomy Cast Ep. 642: Is the Sun... Normal? by Fraser Cain & Dr. Pamela Gay We've always assumed that we lived in a perfectly normal star system with a normal star and normal planets. It's all... n…
00:28:00 |
Mon 16 May 2022
Ep. 641: Can Planets Be Alive?
Astronomy Cast Ep. 641: Can Planets Be Alive? by Fraser Cain & Dr. Pamela Gay The Earth is teeming with life, but the upper atmosphere to kilometers underground. There's no question that our planet h…
00:26:09 |
Mon 09 May 2022
Ep. 640: Survey Science: Newest Projects & Results
Astronomy Cast Ep. 640: Survey Science: Newest Projects & Results by Fraser Cain & Dr. Pamela Gay There are general-purpose telescopes and missions that astronomers can use to study specific objects.…
00:28:42 |
Mon 02 May 2022
Ep. 639: Big Qs Update: Dark Matter, Dark Energy, Etc.
Astronomy Cast Ep. 639: Big Qs Update: Dark Matter, Dark Energy, Etc. by Fraser Cain & Dr. Pamela Gay Knowledge moves forward, and so, we must move with it. Today we'll give you an update on some of …
00:27:35 |
Mon 18 Apr 2022
Ep. 638: Simulating Space Missions
Astronomy Cast Ep. 638: Simulating Space Missions by Fraser Cain & Dr. Pamela Gay Although humans have never actually been to Mars, explorers have simulated many aspects of Mars missions here on Eart…
00:29:32 |
Mon 11 Apr 2022
Ep. 637: Machine Learning in Astronomy
Astronomy Cast Ep. 637: Machine Learning in Astronomy by Fraser Cain & Dr. Pamela Gay Computers are a big part of astronomy, but mostly they've been relegated to doing calculations. But recent develo…
00:29:37 |
Mon 04 Apr 2022
Ep. 636: Blowing Bubbles
Astronomy Cast Ep. 636: Blowing Bubbles by Fraser Cain & Dr. Pamela Gay We think of space as a vacuum, but there are regions of different density. There are winds blowing from stars and other objects…
00:29:23 |
Mon 28 Mar 2022
Ep. 635: Jets: When Magnetic Fields Fling Things
Astronomy Cast Ep. 635: Jets: When Magnetic Fields Fling Things by Fraser Cain & Dr. Pamela Gay As astronomers look out across the Universe. They see various objects spewing jets of material light ye…
00:26:21 |
Mon 21 Mar 2022
Ep. 634: Milky Way’s Mergers & Acquisitions
Astronomy Cast Ep. 634: Milky Way’s Mergers & Acquisitions by Fraser Cain & Dr. Pamela Gay The Milky Way is a vast grand spiral today, but how did it get this way? Astronomers are starting to unravel…
00:27:46 |
Mon 14 Mar 2022
Ep. 633: Weirdly Habitable Places
Astronomy Cast Ep. 633: Weirdly Habitable Places by Fraser Cain & Dr. Pamela Gay We've always assumed that habitable planets would need to be like Earth; a terrestrial planet orbiting a sunlike star.…
00:28:33 |
Mon 07 Mar 2022
Ep. 632: Building Images: Optical vs Radio
Astronomy Cast Ep. 632: Building Images: Optical vs Radio by Fraser Cain & Dr. Pamela Gay A recent image from the South African MeerKAT Telescope blew our minds. It was a high resolution image of the…
00:29:37 |
Mon 28 Feb 2022
Ep. 631: All The Uses Of Pulsars (Including Murder)
Astronomy Cast Ep. 631: All The Uses Of Pulsars (Including Murder) by Fraser Cain & Dr. Pamela Gay Pulsars are the rapidly spinning degenerate husks of dead stars, turning hundreds of times a second.…
00:30:05 |
Mon 21 Feb 2022
Ep. 630: Things We Can Look Forward To
Astronomy Cast Ep. 630: Things We Can Look Forward To by Fraser Cain & Dr. Pamela Gay In a rare moment of weakness, Pamela has decided she's open to the possibility that a future exists. That mission…
00:27:45 |
Mon 14 Feb 2022
Ep. 629: The Cost of Delays
Astronomy Cast Ep. 629: The Cost of Delays by Fraser Cain & Dr. Pamela Gay With all the success of James Webb so far, it's looking like science's huge gamble is going to pay off, but there were years…
00:32:24 |
Mon 07 Feb 2022
Ep. 628: The Sun Revisited
Astronomy Cast Ep. 628: The Sun Revisited by Fraser Cain & Dr. Pamela Gay Once again, it's time to take a look at the Sun. You know, the ongoing thermonuclear explosion of fusing hydrogen that's righ…
00:29:57 |
Mon 31 Jan 2022
Ep. 627: Mercury Revisited
Astronomy Cast Ep. 627: Mercury Revisited by Fraser Cain & Dr. Pamela Gay It’s been about a thousand years since since we last looked at Mercury. So we figured it’s time for an update. What new thing…
00:26:48 |
Mon 17 Jan 2022
Ep. 626: Terrestrial Planets - Mercury, Venus, Earth & Mars
Astronomy Cast Ep. 626: Terrestrial Planets - Mercury, Venus, Earth & Mars by Fraser Cain & Dr. Pamela Gay We continue our refreshed tour of the solar system, checking in on the inner terrestrial pla…
00:30:12 |
Mon 10 Jan 2022
Ep. 625: End of the Year Review
Astronomy Cast Ep. 625: End of the Year Review by Fraser Cain & Dr. Pamela Gay We've reached the end of 2021 and this is the last episode of the year. Let's look back at the big space events of the l…
00:33:22 |
Mon 20 Dec 2021
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