And Galileo sees opportunities with his telescope for really making an impact in that debate. That'll thrust him right into the center, and of course make Galileo a very famous and successful person.

Contrary to what many people think, Galileo did not invent the telescope. In this video segment adapted from NOVA, the Italian physicist and mathematician improves on an existing spyglass design ...

His Telescope (and Sir Isaac's) On Galileo's refractor and Newton's reflector. His Big Mistake How and why Galileo got it wrong about the tides. His Experiments Falling objects, inclined planes ...

Astronomers have constructed telescopes of every kind - massive observatories designed to pick up faint traces of light across space.

August 25, 2009. Exactly 400 years ago today, Galileo unleashed what may be his most lasting contribution to science: the telescope. As both the International Year of Astronomy and Google’s home ...

These replicas, made in 1923 and 1924, are of telescopes invented by Galileo in c 1609 and Sir Isaac Newton in 1668. Galileo’s telescope (right) uses lenses to magnify about 21 times but gives ...

Four hundred years ago, the great astronomer and thinker Galileo Galilei presented his telescope to a world that had no idea how this piece of technology would change perceptions of man's place in ...

Every week, we round up the best tips that you post in io9’s tips forum. We’ve got Batman’s origins, Galileo’s telescope, awesome lego creations, and more. If you want to post a tip, just ...