NASA's Swift temporarily suspends science operations

On March 15, NASA's Neil Gehrels Swift Observatory entered into safe mode, temporarily suspending science operations due to degrading performance from one of its three gyroscopes (gyros), which are used to point the observatory ...

Molecular crystal motors move like microbes when exposed to light

At first glance, Rabih O. Al-Kaysi's molecular motors look like the microscopic worms you'd see in a drop of pond water. But these wriggling ribbons are not alive; they're devices made from crystallized molecules that perform ...

Study declares waste-to-energy plants a low health risk

As China rapidly urbanizes, turning waste into energy has become a key way to handle growing trash volumes and reduce landfill use, while also creating power. Yet, concerns about the pollution from these plants and its health ...

Black carbon sensor could fill massive monitoring gaps

Black carbon is the most dangerous air pollutant you've never heard of. Its two main sources, diesel exhaust and wood smoke from wildfires and household heating, produce ultrafine air particles that are up to 25 times more ...

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