quinta-feira, 22 de abril de 2010

DIA DA TERRA


        A Sunday Afternoon on the Island of  La Grande Jatte - 1884

                  Georges-Pierre Seurat         
                 Art Institute of Chicago



Explanation: Welcome to Planet Earth, the third planet from a star named the Sun. The Earth is shaped like a sphere and composed mostly of rock. Over 70 percent of the Earth's surface is water. The planet has a relatively thin atmosphere composed mostly of nitrogen and oxygen. Earth has a single large Moon that is about 1/4 of its diameter and, from the planet's surface, is seen to have almost exactly the same angular size as the Sun. With its abundance of liquid water, Earth supports a large variety of life forms, including potentially intelligent species such as dolphins and humans. Please enjoy your stay on Planet Earth.

Fonte: Astronomy picture of the day

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