AstronomyCast 211: Celestial Navigation

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 you now only what we know, but how we know what we know. And today we'll begin a series on how we know how old everything is.

18 Mars 201931min

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.

17 Mars 201921min

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 spacecraft out there in the Solar System.

11 Mars 201933min

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

1 Mars 201932min

519: Transients: What They Are and Why They Matter Astronomy Cast 519: Transients: What They Are and Why They Matter by Fraser Cain & Dr. Pamela Gay

25 Feb 201930min

518: When the Universe tried to Declare War Astronomy Cast 518: When the Universe tried to Declare War by Fraser Cain & Dr. Pamela Gay

18 Feb 201930min

517: Fritz Zwicky and the Zwicky Transient Facility Astronomy Cast 517: Fritz Zwicky and the Zwicky Transient Facility by Fraser Cain & Dr. Pamela Gay

11 Feb 201930min

516: Polar Vortices Astronomy Cast 516: Polar Vortices by Fraser Cain & Dr. Pamela Gay

4 Feb 201928min