Astronomy Cast

Take a facts-based journey through the universe.


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13 Seasons and more than 500 episodes await.

Ep. 527: Astronomy of the American Southwest

Ep. 527: Astronomy of the American Southwest

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 This...

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Ep. 526: Event Horizon Telescope and the Black Hole at M87

Ep. 526: Event Horizon Telescope and the Black Hole at M87

Today, of course, we’re going to talk about the announcement from the Event Horizon Telescope and the first photograph of a black hole’s event horizon.

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Ep. 525: 100 Years of the International Astronomical Union

Ep. 525: 100 Years of the International Astronomical Union

Even though they might be scattered around our planet, astronomers have way to come together to work out issues that face their entire field of study. It’s called the International Astronomical Union, and they’re the ones who work out the new names for stars, and sometimes de-planet beloved Kuiper Belt Objects.

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