These awe-inspiring photos of Mother Nature might just be reason enough to give a thankful nod on Earth Day. Here, using clever low exposure techniques, photographer Rolf Maeder managed to capture multiple lightning strikes hitting the Grand Canyon.
This is not a tornado in Namibia. Where is the flying sand? This is the shadow cast by the edge of a sand dune in Namibia. The picture was entered in the Italian National Geographic photo contest by Francesco Middei.