I think I have said that this month is blue month for computer wallpaper, didn't I? Well jump aboard if you haven't already. Here is another great pic from the big exciting world of National Geographic, where their photographers get to travel all over the world to send us images of all the things we don't see staying at home in our lives.
Antarctica's perennially ice-covered Lake Hoare bears the scars of sand and dirt that have worked their way from the surface down into the ice. Soil blows onto the lake from a nearby dry valley, warms in the sun, and melts downward, leaving a bubble column in its trail.
Photograph by Maria Stenzel
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