Battling longer, more intense fire seasons

Fires in Australia have been burning for months. At least 28 people and hundreds of thousands of animals have died, and more than 15 million acres have been destroyed as firefighters work to squelch the blaze. Penn doctoral ...

'Melting rock' models predict mechanical origins of earthquakes

Engineers at Duke University have devised a model that can predict the early mechanical behaviors and origins of an earthquake in multiple types of rock. The model provides new insights into unobservable phenomena that take ...

New model shows how crop rotation helps combat plant pests

A new computational model shows how different patterns of crop rotation—planting different crops at different times in the same field—can impact long-term yield when the crops are threatened by plant pathogens. Maria ...

'Living fossil' may upend basic tenet of evolutionary theory

The field of evolutionary biology has seen its share of spirited debates. But if there's one principle that virtually every expert in the field agrees on, it's that natural selection occurs at the level of the genome.

Clearing up cloudy climate predictions

U.K. scientists are taking to the skies as part of a major international research campaign to better understand the behaviour of clouds and their role in climate change.

Taking the temperature of dark matter

Warm, cold, just right? Physicists at the University of California, Davis are taking the temperature of dark matter, the mysterious substance that makes up about a quarter of our universe.

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