Ep. 502: No Touching: Determining Composition of Worlds Remotely

from 365 Days of Astronomy - Weekly Edition

How do you know what something is made of if you can't reach out and touch it? How do we know what planets lights years away have in their atmosphere? What about the rocks all around Curiosity? Or the geysers coming out of Europa and Enceladus? Scientists have a few handy tricks.

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This episode is 50 minutes long.

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This episode was published on October 22, 2018.

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