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Astronomy Cast

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Astronomy Cast takes a fact based journey through the cosmos as it offers listeners weekly discussions on astronomical topics ranging from planets to cosmology.

Astronomy Cast takes a fact based journey through the cosmos as it offers listeners weekly discussions on astronomical topics ranging from planets to cosmology.
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Location:

United States

Description:

Astronomy Cast takes a fact based journey through the cosmos as it offers listeners weekly discussions on astronomical topics ranging from planets to cosmology.

Language:

English


Episodes

Ep. 498: Dwarf Galaxy Update

7/1/2018
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The Milky Way has gobbled up dozens of dwarf galaxies and added them to its structure. Today we're going to look at the ongoing hunt for the wreckage of past mergers. And what we've discovered about dwarf galaxies in general.

Duration:00:29:24

Astronomy Cast: On Hiatus until September 2018

7/1/2018
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Astronomy Cast will be on hiatus for July and August. Don't worry, we'll be back in September, and will be gearing up for our 500th episode!

Duration:00:02:13

Ep. 497: Update on Globular Clusters

6/25/2018
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Is it globular clusters or is it globeular clusters? It doesn't matter, they're awesome and we're here to update you on them.

Duration:00:30:38

Ep. 496: Update on Stellar Populations I, II, and III

6/18/2018
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Another update show, this time on the various generations of stars, let's get into it.

Duration:00:30:52

Ep. 495: Update on Asteroids and Prospects of Asteroid Mining

6/11/2018
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Our knowledge of space is starting to match up with our ability to get out there an explore it. There are several companies working on missions and techniques to harvest minerals from asteroids. What other resources are out there that we can use?

Duration:00:30:32

Ep. 494: Icy Moons Update 2018

6/4/2018
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Thanks to Cassini and other spacecraft, we've learned a tremendous amount about the icy worlds in the Solar System, from Jupiter's Europa to Saturn's Enceladus, to Pluto's Charon. Geysers, food for bacteria, potential oceans under the ice and more. What new things have we learned about these places?

Duration:00:27:22

Ep. 493: Mars Update 2018

5/28/2018
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If there's one place we've learned more about in the last 10 years, it's Mars. Thanks to all those rovers, orbiters, landers which are flying overhead, crawling around the surface, and digging into the rich Martian regolith. What have we learned about Elon Musk's future home?

Duration:00:28:53

Ep. 492: Comets, Asteroids and KBO's

5/21/2018
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Another topic with plenty of updates. Since we started Astronomy Cast we’ve visited many smaller objects in the Solar System up close, from Ceres and Vesta to Pluto, not to mention a comet. What have we learned?

Duration:00:29:52

Ep 491: Exoplanet Update 2018

5/14/2018
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Finally, a big update. Have there been news in the realm of exoplanets? More news that we can possibly cover. But we’ll try our best.

Duration:00:30:49

Ep 490: What's New with Supernovae

5/7/2018
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Time for another update, this time we're going to look at what's new with supernovae. And once again, we've got good news, lots of new stuff to report.

Duration:00:26:08

Ep 489: Black Hole Update

4/30/2018
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Another update episode, this time we look at what’s new and changed in the research of black holes. And it’s here that we find a lot of substantial new discoveries in the field, so much has been discovered since we first covered black holes a decade ago.

Duration:00:30:48

Ep 488: Dark Energy: 2018 Edition

4/23/2018
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The updates continue. Last week we talked about dark matter, and this week we continue with its partner dark energy. Of course, they’re not really partners, unless you consider mysteriousness to be an attribute. Dark energy, that force that’s accelerating the expansion of the Universe. What have we learned?

Duration:00:27:04

Ep 487: Dark Matter: 2018 Edition

4/13/2018
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Last week, we gave you an update in particle physics. This week it’s time to see what’s new in the world of dark matter. Spoiler alert, we still have no idea what it is, but maybe a few more ideas for what it isn’t.

Duration:00:30:49

Ep 486: Particle Physics Update

4/6/2018
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It’s time for a news update. This time from the field of particle physics. It turns out there have been all kinds of new and interesting particles discovered by the Large Hadron Collider and others. Let’s get an update from Pamela.

Duration:00:27:12

Ep 485: Docking, Refueling, and Transferring

3/30/2018
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It’s one thing to get to space. But once you’ve made it there, what do you want to do? You’ll probably want to dock with another space ship, deliver cargo, refuel. Today we’ll talk about how all that happens.

Duration:00:27:39

Ep 484: Transfer Orbits and Gravitational Assists

3/23/2018
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If you want to get around in the Solar System, you’ll want to take advantage of natural gravitational speed boosts and transfer orbits. Whether you’re heading to the outer Solar System or you want to visit the Sun itself, the planets themselves can help you in your journey.

Duration:00:27:46

Ep 483: Stopping in Space

3/16/2018
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It’s one thing to get from Earth to space, but sometimes you want to do the opposite. You want to get into orbit or touch down gently on the surface of a planet and explore it. How do spacecraft stop? And what does that even mean when everything is orbiting?

Duration:00:27:57

Ep 482: Alternative Ways to Space

3/9/2018
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Getting to space is all about rockets, but people are trying to figure out other methods that could carry payloads to orbit and beyond. Railguns, airplanes, tethers and more. Today we’ll talk about alternative methods of spaceflight.

Duration:00:28:05

Ep 481: Rockets pt. 3 - Going Faster, Higher, Farther after Fairing Separation

3/2/2018
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We’ve seen rockets blast off from here on Earth. But that’s only half the story. Rockets have additional stages to push them into trajectories, like transfer orbits and various orbital maneuvers. Let’s talk about what happens after the rocket is long gone, beyond our sight.

Duration:00:29:22

Ep 480: Rockets pt. 2- Multi-stage Boosters

2/23/2018
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The vast majority of rockets are multi-staged affairs. Why is this? What makes this kind of rocket so successful? Today we look at the ins and outs of multi-stage rockets.

Duration:00:30:29