volcano

This month on Spotlight Audio: Test your listening skills. Hadrian's Wall — Roman Britain. Public figures, private lives. Talking about fashion. And much more. 

The ash is back. Heathrow and Gatwick airports were closed completely for a time yesterday, and flights were grounded in Ireland, Scotland and Wales. If you're looking for information on Eyjafjallajökull, you've come to the right place.

Most of us didn't know that volcanic ash could cause airplanes to crash. And we didn't know that there were volcanoes in Iceland capable of sending so much of that ash into the atmosphere. But now we know how to pronounce Eyjafjallajökull.

What are those big teeth for? Yellowstone's biology is as fascinating as its geology, as author Joel Berger writes in The Better to Eat You With. Bison, elk and moose can survive only by keeping a careful eye on the park's wolves and grizzly bears.