EPISODE · Oct 29, 2018 · 32 MIN

Ep. 503: Gravity Mapping

from 365 Days of Astronomy - Weekly Edition

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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