Add Yahoo as a preferred source to see more of our stories on Google. It's in all the best horror movies, but fog may be scariest when traveling in it. Delaware was under a dense fog advisory Tuesday ...

Scientists have long struggled to define brain fog—let alone pinpoint a cause for it. But research is starting to reveal multiple potential causes from inflammation to a leaky blood-brain barrier.

Fog is essentially a cloud on the ground. Lake Michigan's cool water helps thick fog to form. Fog can be one of the most dangerous weather conditions. We've seen a lot of very thick fog recently. It ...

Following the arctic blast that hit North Texas over the weekend, temperatures will remain low and freezing fog is expected to creep in on Wednesday morning. But what is freezing fog, and what should ...

The peak of the COVID-19 pandemic may be behind us, but for many people, long COVID continues to cause symptoms weeks, months, or even years after the initial illness. Among the more than 200 symptoms ...

What if fog isn't just misty air, but a living ecosystem? This question hung over cloud researcher Thi Thuong Thuong Cao. As a Ph.D. student at Arizona State University, her curiosity led her from ...

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Upstate South Carolina is experiencing a winter storm with snow and freezing fog. Freezing fog consists of supercooled water droplets that can freeze on surfaces, creating a thin layer of ice. The ...

Frigid temperatures persisted in Louisiana on Monday night, Jan. 26 and Tuesday morning, Jan. 27, and the northern region of the state could experience freezing fog. The National Weather Service (NWS) ...