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A huge helium shortage is looming — but ancient rocks in Earth's crust may be hiding massive reservoirs

For decades, helium has been produced with natural gas, generating huge carbon emissions. Now, geologists are looking for new ...
Smithsonian Magazine

A Weak Spot in Earth’s Magnetic Field Is Growing, but Scientists Say Not to Worry. Here’s a Look at What Shields Us From Space Weather

Our planet’s magnetosphere has seen dramatic shifts across its history—even total reversals—but this recent wrinkle doesn’t ...