Here's everything you need to know about the science of fog, accompanied by breathtaking photos of it enshrouding different parts of the world. Fog is like a cloud that touches the ground.

Barking up the right tree: 80 photos were sent in by 15 readers displaying their skills with images of trees. Here are the ...

Valley fog can make for some of the most stunning photos, where fog is nestled in a valley and you can see it rising through the trees. In order for fog to form, the temperature and dewpoint have ...

Brighton and Hove seafront was blanketed in fog this afternoon as a strange weather phenomenon swept over the city ...