Ep. 503: Gravity Mapping - a podcast by 365DaysOfAstronomy.org

from 2018-10-29T18:02:52

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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.