Eyjafjallajokull, Iceland. Volcanic Lighting.
All types of lightning, particularly volcanic lightning, are still largely mysteries to scientists, University of Florida's Uman said.
The Sun.Solar Dynamics Observatory's Atmospheric Imaging Assembly (AIA) instrument.
Different wave lengths reveal the range of temperatures on the sun.
Catshark.New species found.
Deep seas of Greenland.
Deep seas of Greenland.
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