Saturday Citations: All that sparkles is plastic; woke tree diversity; the gravitational basin in which we reside

This week, astronomers considered whether dark energy varies over cosmic timescales. Via neutron analysis, physicists revealed that some Early Iron Age swords were altered recently by swindlers in order to be more historically exciting. And a professor in New Jersey solved two fundamental problems that have baffled mathematicians for decades. Additionally, there were developments in children’s crafting supplies, carbon sequestration and the shifting map of the universe:

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