How an ancient asteroid strike carved out 2 grand canyons on the moon
New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...
Ancient climate reconstruction sheds light on future ocean dynamics
The Pliocene epoch, which lasted from 5.3 million to 2.6 million years ago, was a consequential time in Earth's history. The Isthmus of Panama formed, connecting North and South America, and the ...
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UW-Led Study Traces Indigenous Population Shifts in North America Before Europeans
For a long time, researchers have sought to estimate the size of North America’s Indigenous population before European ...