How to keep supply chains reliable when the world's upended

In March, as COVID-19 cases spiked across the United States, hospitals faced a harrowing shortage of crucial medical supplies, from face masks and ventilators to the nasal swabs and chemicals needed for testing kits. In the ...

The International Space Station: Keeping an eye on earth

Earth's climate is the product of many rich and complex systems. It's affected by water in its many forms; on land, in the air, in the oceans, and as ice. It feels influences from vegetation, from soil conditions, from the ...

California nebula stars in final mosaic by NASA's Spitzer

Five days before NASA's Spitzer Space Telescope ended its mission on Jan. 30, 2020, scientists used the spacecraft's infrared camera to take multiple images of a region known as the California Nebula—a fitting target considering ...

Simulations show extreme opinions can lead to polarized groups

In recent years, chaos theory and other forms of computational modeling have sought to leverage findings in the social sciences to better describe—and maybe one day predict—how groups of people behave. One approach looks ...

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