This is an awesome picture. Supercell Thunderstorm by Sean Heavey, nationalgeographic: A supercell thunderstorm rolls across the Montana prairie at sunset. This was a winning shot in the 2010 National Geographic Nature Gallery Photo Contest.

undersea volcano tonga

undersea-volcano-tonga- Undersea Volcano – Coast of Tonga (March - Photograph by Dana Stephenson/Getty Images

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The Chaiten volcano erupts during storms in the middle of the night on May 2008 in Chaiten, Chile. The Chaiten volcano, located some 800 miles south of the capital Santiago, was considered dormant since it had not erupted for hundreds of years.

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A spectacular view of sacred volcanoes known as Mount Semeru, Mount Bromo, and Mount Batok on Java, Indonesia. Photo by

Polar bear hugs husky dog by shirster, via Flickr

This pic is real. A polar bear came for multiple days to play with the dogs of a sled team. When the bear first arrived the owner of the dogs thought they were goners. Never once did the bear harm the dogs.

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pyroclastic flows of Mt. Redoubt volcanic eruption in Alaska Apr 2009

Columbia Glacier, Alaska

Landsat images: The Columbia Glacier descends the Chugach Mountains into Prince William Sound in Alaska. Landsat allows scientists to monitor the changing fronts of such ice streams.

The aurora borealis: Pictured: breathtaking Northern Lights shining across Britain

The Northern Lights dancing across the horizon were photographed in Britain. The aurora borealis are rarely seen in the UK, but specialist photographer Reed Ingram Weir took this photograph on the near Alnwick Northumberland.

Puyehue Volcano Eruption

I just love thunder and lightning, so took some time to find the most amazing pictures of lightning and of course share them with you!

Lightning in the eruption ash column of an explosion of Anak Krakatau (Nov 2010) (Photo: Tom Pfeiffer)

A dirty thunderstorm is a weather phenomenon that occurs when lightning is produced in a volcanic plume. image via: Volcano Discovery

A cloud of ash billows from Puyehue volcano Chile

Volcano lights up Chile’s sky

© Claudio Santana, June Puyehue volcano / Chile A cloud of ash billowing from Puyehue volcano near Osorno in southern Chile, 870 km south of Santiago. Puyehue volcano erupted for the first.