The Karoo Basin and the end Permian mass extinction

Earth's biosphere witnessed its greatest ecological catastrophe in the latest Permian, dated to about 251.9 million years ago. The current model for biodiversity collapse states that both marine and terrestrial animals were ...

Arizona rock core sheds light on triassic dark ages

A rock core from Petrified Forest National Park, Arizona, has given scientists a powerful new tool to understand how catastrophic events shaped Earth's ecosystems before the rise of the dinosaurs.

Crash-testing lithium-ion batteries

Lithium-ion batteries are lightweight, fully rechargeable, and can pack a lot of energy into a small volume—making them attractive as power sources for hybrid and electric vehicles.

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