This quick, challenging four-by-four puzzle is perfect for a quick break.
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In the late 16th century, the enigmatic warrior fought alongside a feudal lord dubbed the "Great Unifier"
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The polar desert is a prime zone for preserving space rocks dating back to our early solar system
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A wildlife enthusiast in eastern Canada stumbled across the magnificent event this month
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A new study finds our planet's iron center shifts between spinning slightly faster and slightly slower than the surface—but not all experts agree
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The red junglefowl is losing important genetic diversity in its native Asian habitat
