Scientists have traced Earth's path through the galaxy via tiny crystals found in the crust - The Conversation

There’s a curious 200-million-year rhythm to Earth’s crust production. Now, it seems like our very place in the galaxy is tied to it.

To see a world in a grain of sand, the opening sentence of the poem by William Blake, is an oft-used phrase that also captures some of what geologists do. We observe the composition of mineral grain… [+6346 chars]

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