https://www.youtube.com/watch?v=pvy9yjspW-k

Streamed live October 26th, 2018.

Sorry about the audio on Pamela's side. She wisely used her phone to link to Fraser (and YouTube) so that her TwitchCon hotel WiFi wouldn't cause the audio stream to halt unexpectedly.

The Earth looks like a perfect sphere, but down here on the surface we see that there are mountains, rivers, oceans, glaciers, all kinds of features with different densities and shapes. Scientists can map this produce a highly detailed gravity map of our planet. And it turns out, this is very useful for other worlds too.

 

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