Podcasts


Ep. 551: Missing Epochs – Observing before the CMBR

Posted by on 4:48 pm in Cosmology, History, podcast | 0 comments

Ep. 551: Missing Epochs – Observing before the CMBR

The Cosmic Microwave Background Radiation is the earliest moment in the Universe that we can see with our telescopes, just a few hundred thousand years after the Big Bang itself. What will it take for us to be able to fill in the missing gap? To see closer to the beginning of time itself?

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Ep. 550: Missing Epochs – Observing the Cosmic Dark Ages

Posted by on 4:47 pm in Cosmology, History, podcast | 0 comments

Ep. 550: Missing Epochs – Observing the Cosmic Dark Ages

Powerful observatories like Hubble and the Very Large Telescope have pushed our vision billions of light-years into the Universe, allowing us to see further and further back in time. But there are regions which we still haven’t seen: the Cosmic Dark Ages. What’s it going to take to observe some of these earliest moments in the Universe?

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Ep. 549: Stellar nucleosynthesis revisited: In and on and around dead stars

Posted by on 10:31 am in Chemistry, Physics, podcast, Stars, Stellar Evolution | 0 comments

Ep. 549: Stellar nucleosynthesis revisited: In and on and around dead stars

Last week we gave you an update on the formation of elements from the Big Bang and in main sequence stars like the Sun. This week, we wrap up with a bang, talking about the death of the most massive stars and how they seed the Universe with heavier elements.

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Ep. 548: Stellar nucleosynthesis revisited: In stellar cores & atmospheres

Posted by on 9:31 am in Chemistry, Physics, podcast, Stars, Stellar Evolution | 0 comments

Ep. 548: Stellar nucleosynthesis revisited: In stellar cores & atmospheres

The Universe started out with hydrogen and helium and a few other elements, but all around us, there are other, more proton-rich elements. We believe these heavier elements formed in stars, but which stars? And at what points in their lives? Today we’ll update our knowledge with the latest science.

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Ep. 547: Why Astronomy Still Needs Humans

Posted by on 8:46 pm in Doing Astronomy, People, podcast | 0 comments

Ep. 547: Why Astronomy Still Needs Humans

Few sciences have been able to take advantage of the power of computers like astronomy. But with all this computing power, you might be surprised to learn how important a role humans still play in this science.

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Ep. 546: Weird Issues: Planetary Migration

Posted by on 4:53 pm in Extrasolar Planets, Planets, podcast | 0 comments

Before we discovered other planets, our Solar System seemed like a perfectly reasonable template for everywhere. But now we see massive planets close to their stars, which leads you to the question, how does it all get there. Do the planets form in place or do they migrate around?

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Ep. 545: Weird Issues: Are comets asteroids or are asteroids comets?

Posted by on 8:54 pm in Astronomy, Interplanetary Bodies, podcast | 0 comments

Ep. 545: Weird Issues: Are comets asteroids or are asteroids comets?

Things used to be so simple. Comets were snowballs from the outer Solar System, and asteroids were rocks from the inner Solar System. But now everything’s all shades of grey. Astronomers have found asteroids that behave like comets and comets that behave like asteroids.

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Ep. 544: Weird Issues: Biosignatures

Posted by on 9:28 pm in Chemistry, Planetary Science, Planets, podcast | 0 comments

Ep. 544: Weird Issues: Biosignatures

Once again, another place where the Universe is going to make this difficult for us. Proving, once and for all that there’s alien life on another world. It should be straightforward, look for biosignatures, but it looks like there are natural sources that could explain almost any chemical we could hope to search for.

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Ep. 543: Weird Issues: The Habitable Zone

Posted by on 6:48 pm in Cosmology, Exoplanets, podcast, Solar System | 0 comments

Ep. 543: Weird Issues: The Habitable Zone

Our series on Universe weirdness marches on. This week we take a look at the habitable zone, and how things aren’t as simple as we thought.

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Ep. 542: Weird Issues: The Age of the Universe

Posted by on 8:06 pm in Cosmology, podcast | 0 comments

Ep. 542: Weird Issues: The Age of the Universe

Our series on Universe weirdness continues, this time we learn how astronomers are struggling to make sense of the age of the Universe.

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