Galileo and the International Year of Astronomy

A look at the legacy of Galileo Galilei, 400 years after the Italian astronomer turned his spyglass toward the heavens

An Astronomer's Astronomer: Kepler's Revolutionary Achievements in 1609 Rival Galileo's

The International Year of Astronomy marks the 400th anniversary of German astronomer Johannes Kepler's breakthroughs as well as those of his better-known Italian contemporary


10 Telescopes That Changed Our View of the Universe [Slide Show]

Historic telescopes through the ages, from Galileo to the 21st century


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