December 23, 2017 | Science News

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12/23/17 cover

In the Dec. 23 & Jan. 6 SN: Our top stories of 2017, grounded pterosaur hatchlings, protectors of the Dead Sea Scrolls, a counterintuitive metamaterial, neutron star sizing, arrow of time reversed, E. coli in flour and more. 

December 23, 2017