For those with a passion for rare books, delving into an original work of Galileo has always offered unparalleled insight. There is no more immediate way to bring his inquisitive spirit to life than ...

Four hundred years ago, our concept of the universe was very different from today’s. Up until 1609, all astronomical knowledge had been gained strictly by interpreting naked eye observations. There ...

NEW YORK — In 1610, Galileo Galilei peered through his telescope and discovered four moons orbiting around Jupiter, a breakthrough that helped confirm the heliocentric theory that the Earth revolves ...

It isn’t hard to find the influence of Galileo Galilei (1564–1642) on the history of astronomy. After all, he was the first to use a telescope to study the heavens systematically and objectively. He ...

From a home observatory in a London house on July 26, 1609, an epic journey began both for exploration, and for the lives of two pioneers: one famous, one not so much. The first known drawing of the ...

NASA's workhorse spacecraft Galileo is making a final flyby of Jupiter's moon Amalthea in what was expected to mark the end of the science-gathering portion of its 13-year mission. National ...

Europe’s Lunar Pathfinder mission to the Moon will carry an advanced satellite navigation receiver to perform the first satellite navigation positioning fix in lunar orbit. The experimental payload ...

A review of data captured by NASA's Galileo spacecraft as it orbited Jupiter in the 1990s indicates it likely flew through a plume of water vapor spewing from cracks in the surface of the moon Europa, ...

Join experts as they examine an alleged proof copy of Galileo’s “Sidereus Nuncius.” Join experts as they uncover the truth behind the find of the century; an alleged proof copy of Galileo’s “Sidereus ...