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Astronomy Cast

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Mar 25, 2019

523: Judging Age & Origins, Pt. 2 Across the Solar System

Astronomy Cast 523: Judging Age & Origins, Pt. 2 Across the Solar System

by Fraser Cain & Dr. Pamela Gay

Today we push our aging curiosity out into the Solar System to ask that simple question: how old is it and how do we know? What techniques do astronomers use...


Mar 18, 2019

522: Judging Age & Origins, part 1 - Earth Rocks

Astronomy Cast 522: Judging Age & Origins, part 1 - Earth Rocks

by Fraser Cain & Dr. Pamela Gay

People always want to know how old everything is. And more specifically, they want to know how we know how old everything is. Well, here at Astronomy Cast, it's our job to tell...


Mar 17, 2019

Bonus: Dust with Dr. Paul Sutter

Astronomy Cast Bonus: Dust with Dr. Paul Sutter

by Fraser Cain & Dr. Pamela Gay

Recorded during the Astrotour to Costa Rica, Fraser talks to Dr. Paul Matt Sutter about the nature of dust and BICEP 2's claim of discovering primordial gravitational waves.


Mar 11, 2019

521: The Deep Space Network

Astronomy Cast 521: The Deep Space Network

by Fraser Cain & Dr. Pamela Gay

We always focus on the missions, but there's an important glue that holds the whole system together. The Deep Space Network. Today we're going to talk about how this system works and how it communicates with all the...


Mar 1, 2019

520: Transients: What They Are and Why They Matter, Part 2

Astronomy Cast 520: Transients: What They Are and Why They Matter, Part 2

by Fraser Cain & Dr. Pamela Gay