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TechNew atomic clock is most precise yet
This next-gen atomic clock ticks at a steady beat, but time will tell just how well it tells time.
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AgricultureMuch of the world’s honey now contains bee-harming pesticides
A controversial group of chemicals called neonicotinoids has a global impact, tests of honey samples show.
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PhysicsProton size still perplexes despite a new measurement
Study of hydrogen atoms supports the case for a smaller proton.
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GeneticsAncient humans avoided inbreeding by networking
Ancient DNA expands foragers’ social, mating networks.
By Bruce Bower -
Astronomy50 years ago, a spacecraft discovered oxygen in moon rocks
In 1967, scientists dreamed of lunar processing plants to turn moon rocks into oxygen.