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Arizona’s Declining Groundwater
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Published July 21, 2025
Decades of satellite observations show that the aquifers in the southern part of the state are ailing.
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Wildfire Smoke Billows Over Northern California
Published July 16, 2025
Amid scorching heat and low humidity, the Green and Butler fires have burned tens of thousands of acres and choked nearby communities with smoke.
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Fires Rage in Arizona
Published July 14, 2025
Two lightning-ignited fires near the Grand Canyon became large and destructive in July 2025.
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Blast From the Past: Arizona’s Meteor Crater
Published July 4, 2025
The “young” and well-preserved crater helps scientists understand cratering processes on Earth and elsewhere in the solar system.
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Blast from the Past: Deciphering India’s Luna Crater
Published July 5, 2025
A round depression in the salty plains of the Kutch Basin reveals telltale signs of a prehistoric meteorite impact.
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Blast From the Past: Young Impact Crater Uncovered in Yilan
Published July 3, 2025
The 50,000-year-old crater is relatively young, and only the second discovered in China.
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