Understanding our interconnected world and COVID-19

In his pathbreaking 1971 book, Barry Commoner outlined his enduring and succinct four laws of ecology: (1) Everything is connected to everything else; (2) Everything must go somewhere; (3) Nature knows best, and (4) There ...

Global education rankings may overlook poor graduation rates

One standardized assessment tool has become the key benchmark for national governments to judge their schools' successes. But the academic rankings generated by the Program in International Student Assessment (PISA) are eclipsing ...

Why a rocky planet with three suns has astronomers' attention

Planets that are even a little like Earth are hard to find. That's why when astronomers like Jennifer G. Winters come across a body that may be solid, rocky, and possibly have its own atmosphere, they get excited. And especially ...

Mathematical modeling shows why animals see at night

Nocturnal and diurnal mammals see the sameā€”but only for a brief time. When mice are born, the chromatin in the cells of their eyes has a diurnal structure. Day by day, the layout of this chromatin slowly inverts, allowing ...

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