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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.

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Latest bursts

A highlight from Ep. 660: Runaway! Runaway! Escaping Stars, Planets & Small Bodies

A highlight from Ep. 660: Runaway! Runaway! Escaping Stars, Planets & Small Bodies

A highlight from Ep. 660: Runaway! Runaway! Escaping Stars, Planets & Small Bodies

Aired 4 d ago

Ep. 659: Clear Skies, Bright Satellites - burst 7

Ep. 659: Clear Skies, Bright Satellites - burst 7

Ep. 659: Clear Skies, Bright Satellites - burst 7

Aired 2 weeks ago

A highlight from Ep. 659: Clear Skies, Bright Satellites

A highlight from Ep. 659: Clear Skies, Bright Satellites

A highlight from Ep. 659: Clear Skies, Bright Satellites

Aired 2 weeks ago

A highlight from Ep. 658: Space Exploration Horror Stories

A highlight from Ep. 658: Space Exploration Horror Stories

A highlight from Ep. 658: Space Exploration Horror Stories

Aired 3 weeks ago

A highlight from Ep. 657: Astronomical Naming Schemes

A highlight from Ep. 657: Astronomical Naming Schemes

A highlight from Ep. 657: Astronomical Naming Schemes

Aired Last month

A highlight from Ep. 656: Smashing Asteroids for Science!

A highlight from Ep. 656: Smashing Asteroids for Science!

A highlight from Ep. 656: Smashing Asteroids for Science!

Aired Last month

A highlight from Ep. 655: 65 Years of Space: Sputnik 1 Anniversary

A highlight from Ep. 655: 65 Years of Space: Sputnik 1 Anniversary

A highlight from Ep. 655: 65 Years of Space: Sputnik 1 Anniversary

Aired 2 months ago

A highlight from Ep. 654: The Side Effects Of Clean Energy

A highlight from Ep. 654: The Side Effects Of Clean Energy

A highlight from Ep. 654: The Side Effects Of Clean Energy

Aired 2 months ago

A highlight from Ep. 653: Climate Change: Looking at the Variables

A highlight from Ep. 653: Climate Change: Looking at the Variables

A highlight from Ep. 653: Climate Change: Looking at the Variables

Aired 2 months ago

As summer turns to fall, ULA still waiting for its BE-4 rocket engines - Ars Technica

As summer turns to fall, ULA still waiting for its BE-4 rocket engines - Ars Technica

As summer turns to fall, ULA still waiting for its BE-4 rocket engines - Ars Technica

Aired 2 months ago

A highlight from Ep. 652: The Rocket Race Towards Reusability

A highlight from Ep. 652: The Rocket Race Towards Reusability

A highlight from Ep. 652: The Rocket Race Towards Reusability

Aired 2 months ago

A highlight from Ep. 651: Artemis & The Decline of Single Use Rockets

A highlight from Ep. 651: Artemis & The Decline of Single Use Rockets

A highlight from Ep. 651: Artemis & The Decline of Single Use Rockets

Aired 3 months ago

A highlight from Ep. 650: Did JWST Work?

A highlight from Ep. 650: Did JWST Work?

A highlight from Ep. 650: Did JWST Work?

Aired 4 months ago

A highlight from Ep. 649: Highlights From NASAs Holiday Ruining History

A highlight from Ep. 649: Highlights From NASAs Holiday Ruining History

A highlight from Ep. 649: Highlights From NASAs Holiday Ruining History

Aired 5 months ago

A highlight from Ep. 648: Summer Observing

A highlight from Ep. 648: Summer Observing

A highlight from Ep. 648: Summer Observing

Aired 5 months ago

A highlight from Ep. 647: Best Sci Fi Beach Reading

A highlight from Ep. 647: Best Sci Fi Beach Reading

A highlight from Ep. 647: Best Sci Fi Beach Reading

Aired 5 months ago

A highlight from Ep. 646: Our Long Term Future in Space

A highlight from Ep. 646: Our Long Term Future in Space

A highlight from Ep. 646: Our Long Term Future in Space

Aired 5 months ago

A highlight from Ep. 645: The Future of the ISS

A highlight from Ep. 645: The Future of the ISS

A highlight from Ep. 645: The Future of the ISS

Aired 6 months ago

A highlight from Ep. 644: Is Earth Normal?

A highlight from Ep. 644: Is Earth Normal?

A highlight from Ep. 644: Is Earth Normal?

Aired 6 months ago

A highlight from Ep. 643: Sagittarius A*

A highlight from Ep. 643: Sagittarius A*

A highlight from Ep. 643: Sagittarius A*

Aired 7 months ago

A highlight from Ep. 642: Is the Sun... Normal?

A highlight from Ep. 642: Is the Sun... Normal?

A highlight from Ep. 642: Is the Sun... Normal?

Aired 7 months ago

A highlight from Ep. 641: Can Planets Be Alive?

A highlight from Ep. 641: Can Planets Be Alive?

A highlight from Ep. 641: Can Planets Be Alive?

Aired 7 months ago

A highlight from Ep. 640: Survey Science: Newest Projects & Results

A highlight from Ep. 640: Survey Science: Newest Projects & Results

A highlight from Ep. 640: Survey Science: Newest Projects & Results

Aired 7 months ago

A highlight from Ep. 639: Big Qs Update: Dark Matter, Dark Energy, Etc.

A highlight from Ep. 639: Big Qs Update: Dark Matter, Dark Energy, Etc.

A highlight from Ep. 639: Big Qs Update: Dark Matter, Dark Energy, Etc.

Aired 8 months ago

A highlight from Ep. 638: Simulating Space Missions

A highlight from Ep. 638: Simulating Space Missions

A highlight from Ep. 638: Simulating Space Missions

Aired 8 months ago