Episode 170
The Times They Are a-Changin'
At the start of this new year we crack open some fossils, peer back into ancient seas, and look up at lunar skies to find that a year is not quite as fixed as we thought it was.
December 30, 201320m 17s
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Show Notes
At the start of this new year we crack open some fossils, peer back into ancient seas, and look up at lunar skies to find that a year is not quite as fixed as we thought it was.
Topics
calendarshortslifemoontimescience