" Man needs, for his happiness, not only the enjoyment of this or that, but hope and enterprise and change. "
Bertrand Russell

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Jupiter's Io Observed by Spacecraft Galileo

Discovered by Galileo in 1610, Io, Jupiter's third largest moon, played a significant role in the adoption of the Copernican model of the Solar System, the development of Kepler's laws of motion, and the first measurement of the speed of light. In 2001, the unmanned spacecraft Galileo came within 112 miles of Io, transmitting images of some of its numerous erupting volcanoes, hundreds of miles of lava flows, and plumes of sulfur. Why was the craft later destroyed in space?

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The Pyramid of the Magician

The central structure in the ancient Mayan complex of Uxmal, Mexico, the Pyramid of the Magician is a step pyramid that was begun in the 6th century and expanded over the next 400 years. At the time, new temple pyramids were commonly built atop older ones, and this pyramid is the result of five nested temples. With its rounded sides, considerable height, steep slope, and elliptical base, the structure represents the pinnacle of late Maya art and architecture. How did it get its mysterious name?

Born on a day like today

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Friedrich Nietzsche

Nietzsche was a German philosopher whose critiques of contemporary culture, religion, and philosophy centered on a basic question regarding the foundation of values and morality. He passionately rejected Western bourgeois civilization and regarded Christian civilization as decadent. Denouncing its "slave morality," he looked to the "superman," the creator of a new heroic morality that would consciously affirm life and life values. What is Nietzsche's concept of "perspectivism"?

Last updated on Thursday, 15th October 2009

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