Dallol Volcano

New models predicting where to find fossils

Six to 10 million years ago: Ice-free summers at the North...

Supernovae showered Earth with radioactive debris

Optical approach offers faster, less expensive method for carbon dating

Geothermal heat contributes to Greenland ice melt

Mohs Hardness Scale

Massive Ancient Tectonic Slab Found Below the Indian Ocean

240-million-year-old fossils indicate how dinosaurs grew from hatchlings to adults

Early Mars bombardment likely enhanced life-supporting habitat

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