Episodes


Ep. 585: Super Earths, Mini-Neptunes, Gas Dwarfs

Posted by on 4:10 am in Astronomy, Exoplanets, Extrasolar Planets, Planets, podcast | 0 comments

Ep. 585: Super Earths, Mini-Neptunes, Gas Dwarfs

As astronomers are finding even more new extrasolar planets, they’re starting to discover entirely new categories. There are classes of planets out there that we just don’t have any analog here in the Solar System. Let’s talk about them.

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Ep. 584: Sample Return Missions from Asteroids

Posted by on 1:44 am in Missions, Our Solar System, Planetary Science, podcast, Solar System | 0 comments

Ep. 584: Sample Return Missions from Asteroids

With a sample of asteroid Bennu firmly inside OSIRIS-REx’s return capsule, it’s time to bring this treasure home so scientists can study the composition and history of the space rock. But it’s not the only sample return mission out there, with Japan’s Hayabusa2 mission also bringing asteroid debris home. Today, let’s talk about the missions and what we’ve learned so far.

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Ep. 583: The Nobel Prize

Posted by on 3:39 pm in Astronomy, Compact Objects, Cosmology, People, Physics, podcast, Relativity, Science | 0 comments

Ep. 583: The Nobel Prize

This year’s Nobel Prize in Physics was awarded to three brilliant researchers who worked out some of the secrets of black holes. Today we’re going to talk about the chain of discoveries that led to this award.

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Ep. 582: Building Bigger Black Holes

Posted by on 11:26 pm in Astronomy, Cosmology, podcast | 0 comments

Ep. 582: Building Bigger Black Holes

Did you hear the news? Nobel Prizes for black holes. We know there are stellar mass black holes and supermassive black holes, but how do you get from one to the other? How do black holes get more massive?

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Ep. 581: Other Kinds of Novae

Posted by on 3:31 am in podcast, Science, Stars, Stellar Evolution | 0 comments

Ep. 581: Other Kinds of Novae

Don’t ever accuse us of not comprehensively covering every kind of exploding star. This week we gather up all the leftover ways that stars partially or fully explode, or don’t. Probably. Enjoy.

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Ep. 580: Exploding Dwarfs

Posted by on 4:36 am in Astronomy, podcast, Stars, Stellar Evolution | 0 comments

Ep. 580: Exploding Dwarfs

You’d think that a white dwarf star is the end of a stellar life. It’s all downhill from there. A long, slow cool down towards the end of everything. But in some situations, even dead stars can get exciting again, briefly becoming some of the brightest objects in the Universe. And just maybe, the last exciting thing that ever happens in the Universe.

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Ep. 579: White and Black Dwarfs

Posted by on 8:06 pm in Astronomy, Forces, High Energy Physics, Particles, Physics, podcast, Stellar Evolution | 0 comments

Ep. 579: White and Black Dwarfs

I’ve got some bad news for you: stars die. At some point in the next few billion years or so, our Sun is going to start heating up, using up all the fuel in its core, and then eventually die, becoming a white dwarf. It will then slowly cool down to the background temperature of the universe, becoming a black dwarf.

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Ep. 578: Life on Venus?!?

Posted by on 1:40 am in Our Solar System, Planetary Science, Planets, podcast, Solar System | 0 comments

Ep. 578: Life on Venus?!?

Have you heard the big news? Of course you have, evidence of phosphine on Venus which could be a biosignature of life on our evil twin planet. There have been a lot of surprising stories about Venus, so let’s get you all caught up.

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Ep. 577: Mars in Opposition

Posted by on 1:42 pm in Our Solar System, Planetary Science, Planets, podcast, Solar System | 0 comments

Ep. 577: Mars in Opposition

Every two years or so, Mars lines up nicely with the Earth. It only takes two minutes to communicate with rovers, you can see the polar ice caps in a small telescope, and it’s the best time to send spacecraft to the red planet.

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Ep. 576: Summer Stargazing Special

Posted by on 2:26 pm in Amateur Astronomy, Observing, podcast | 0 comments

Ep. 576: Summer Stargazing Special

It’s time, once again, for Astronomy Cast to go on hiatus. You’ve got a couple of months on your own to explore the night sky. Before we say goodbye, though, we’d like to make a few suggestions.

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