The line between art and science has always been blurred,” Charlie Reinertsen said. Tonight, he’s hosting the first of the ...

Today, Yellowstone remains a place of low volcanic risk. Sure, there are sometimes small explosions stoked by hot water and steam. But it's mostly thermal pools and awesome geysers, reminding us of ...

They flattened forests, left massive craters and even killed the dinosaurs. Learn all about Earth’s hugest asteroid strikes.

Scientists have discovered a 22-million-year-old fossil tree in Ethiopia’s Mush Valley, revealing a lost tropical forest that ...

There are plenty of desirable locations where traveling can be tricky—or downright deadly. Read through our list of the most ...