Risk of asteroid hitting Earth higher than thought, study shows

In Mediterranean marble, secrets of the global carbon cycle

Heulandite

Ecology team improves understanding of valley-wide stream chemistry

Researchers find 3-million-year-old landscape beneath Greenland Ice Sheet

Hetaerolite

Krypton used to accurately date ancient Antarctic ice

Today’s Antarctic region once as hot as California, Florida

Hessite

Taking the pulse of mountain formation in the Andes

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