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Alvorada Palace by Oscar Niemeyer (1957-1958), Brasilia, Brazil. Official residence of the President of Brazil.

Palácio da Alvorada ("Palace of Dawn") by Oscar Niemeyer Brasilia, Brazil. Official residence of the President of Brazil.

Cat's Eye Nebula

This image is NGC 6543 known as the Cat's Eye Nebula as it appears to the Chandra X-Ray Observatory and Hubble Telescope. A planetary nebula is a phase of stellar evolution that the sun should experience several billion years from now, when i.