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Researchers follow a 15th century recipe to recreate Medieval blue ink (www.smithsonianmag.com)

The purplish-blue pigment, derived from a Portuguese fruit, fell out of use by the 19th century and its chemical makeup was soon forgotten.

 

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Strange glass spheres found in ancient Florida clams point to meteor strike (www.discovermagazine.com)

Paleontologists find world’s oldest fossil bug (www.sci-news.com)