Plasma thruster: New space debris removal technology

The Earth is currently surrounded by debris launched into space over several decades. This space junk can collide with satellites, causing damage and creating more debris. To preserve a secure space environment, the active ...

Reducing leather pollution with molten salts

From handbags and jackets to car interiors, leather products are almost everywhere. But processing the leather for these luxury items creates a lot of potentially harmful pollution. Now, one group reports in ACS Sustainable ...

Fish should figure in to fate of nation's aging dams

As nearly 75 percent of the nation's largest dams approach the high maintenance years, safety and economics figure large in decisions to fix or replace. A recent study by Michigan State University (MSU) researchers makes ...

Dam removal projects accelerate, but research lags behind

A new review reveals gaps in the science of dam removal. Although more than 1200 dams have been removed in the United States, fewer than 10 percent have been scientifically evaluated. Those studies that do exist focus more ...

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