Continents were once thought to be static, locked tight in their positions in Earth's crust. Similarities between distant coastlines, such as those on opposite sides of the Atlantic, were thought to be the work of a...
According to theory of plate tectonics, Earth is an active planet -- its surface is composed of many individual plates that move and interact, constantly changing and reshaping Earth's outer layer. Volcanoes and...
Solar eclipses result from the alignment of the Sun, Moon, and Earth. Total solar eclipses, in which the Sun is completely blocked by the Moon, are a spectacular and rare sight to witness. This animation, adapted from a...
This collection provides a wide array of visual resources and supporting material about the December 26, 2004 Indian Ocean Tsunami. Visualizations include simple animations, satellite photographs, Quicktime animations...
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