Podcasts


Ep. 523: Judging Age & Origins, Pt. 2 Across the Solar System

Posted by on 2:16 am in Planets, podcast, Solar System | 2 comments

Ep. 523: Judging Age & Origins, Pt. 2 Across the Solar System

Today we push our aging curiosity out into the Solar System to ask that simple question: how old is it and how do we know? What techniques do astronomers use to age various objects and regions in the Solar System? This is part two of a double episode. In this episode we mentioned donations and tours. Click to learn more! Download MP3| Download Raw Show with Q&A| Show Notes | Jump to Transcript or Download Show Notes Measuring Stellar Ages Measuring the Age of a Star Cluster How do scientists determine the ages of stars? How to Estimate...

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Bonus Episode: Dust with Dr. Paul Sutter

Posted by on 8:38 pm in Astronomy, Particles, podcast | 0 comments

Bonus Episode: Dust with Dr. Paul Sutter

Recorded during the Astrotour to Costa Rica, Fraser talks to Dr. Paul Matt Sutter about the nature of dust and BICEP 2’s claim of discovering primordial gravitational waves.

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Ep. 522: Judging Age & Origins, part 1 – Earth Rocks

Posted by on 3:04 am in Planetary Science, Planets, podcast, Solar System | 0 comments

Ep. 522: Judging Age & Origins, part 1 – Earth Rocks

http://traffic.libsyn.com/astronomycast/AstroCast-190318.mp3Podcast: Play in new window | DownloadSubscribe: Android | RSSPeople always want to know how old everything is. And more specifically, they want to know how we know how old everything is. Well, here at Astronomy Cast, it’s our job to tell you now only what we know, but how we know what we know. And today we’ll begin a series on how we know how old everything is. This is part one of a double episode. In this episode we mentioned donations and tours. Click to learn more!...

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Ep. 521: The Deep Space Network

Posted by on 4:55 pm in Doing Astronomy, Exoplanets, Observing | 0 comments

Ep. 521: The Deep Space Network

We always focus on the missions, but there’s an important glue that holds the whole system together. The Deep Space Network. Today we’re going to talk about how this system works and how it communicates with all the spacecraft out there in the Solar System.

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Ep. 520: Transients: What They Are and Why They Matter, Part 2

Posted by on 2:45 am in Astronomy, Exoplanets, Galaxies, High Energy Physics, Observing, podcast | 0 comments

Ep. 520: Transients: What They Are and Why They Matter, Part 2

This is our second episode in a two part series where we look at Transients in astronomy. In last week’s episode, we talked about things that change here in our own Solar System. Now we’ll talk about everything else in the Milky Way and beyond.

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Ep. 519: Transients: What They Are and Why They Matter

Posted by on 6:42 pm in High Energy Physics, Nebulae, Observing, podcast | 0 comments

Ep. 519: Transients: What They Are and Why They Matter

Astronomers have found that sometimes the Universe changes. Things move, things explode, things get brighter or dimmer. In fact, knowing this has helped astronomers discover some very important aspects of the Universe. Today we begin a two part series on Transients and their role in astronomy.

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Ep. 518: When the Universe tried to Declare War

Posted by on 10:13 pm in High Energy Physics, Physics, podcast | 0 comments

Ep. 518: When the Universe tried to Declare War

We always say the Universe is trying to kill us. But there was this one time, when the Universe used our own fear of nuclear attack against us, nearly setting off a global nuclear war. Nice try Universe, we’re on to you now.

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Ep. 517: Fritz Zwicky and the Zwicky Transient Facility

Posted by on 8:44 pm in Cosmology, Doing Astronomy, People, podcast | 0 comments

Ep. 517: Fritz Zwicky and the Zwicky Transient Facility

One of the most influential astronomers in the 20th Century was Fritz Zwicky. He had his hand in the discovery of dark matter, gravitational lensing, supernovae and neutron stars. And he also worked on a few more controversial ideas like, uh, tired light. Let’s learn more about Zwicky.

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Ep. 516: Polar Vortices

Posted by on 7:52 pm in Planetary Science, podcast | 0 comments

Ep. 516: Polar Vortices

It’s cold right now. Okay, fine, here on Vancouver Island, it’s actually pretty warm. But for the rest of Canada and big parts of the US, it’s terrifyingly cold. Colder than Mars or the North Pole cold. This is all thanks to the break up of the polar vortex. What are polar vertices, how do they form, and where else to we find them in the Solar System?

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Ep. 515: Space Radiation

Posted by on 6:28 pm in Forces, High Energy Physics, Missions, Physics, podcast | 0 comments

Ep. 515: Space Radiation

Space is a hostile environment in so many ways. But one of its worst features is the various kinds of radiation you can find. When astronauts go back beyond the protective environment of the Earth’s magnetosphere, what are the various kinds of radiation they’ll encounter. And is there anything we’ll be able to do about it?

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