Shortly after he began producing his binoculars, news of the telescope reached Galileo. These days, the telescope is mostly closely associated with the night sky, but it's also useful on land and ...

(For more on the controversy Galileo spawned, see His Big Mistake.) Building a better refractor The spyglass-turned-telescope had limitations, some of which Galileo was able to design around.

Understandably so: if Galileo is considered a patron saint of astronomy, then his telescope is one of its most holy relics. "Galileo's work with the telescope unleashed the notion that ours is a ...

Galileo Galilei was born on February 15 ... After years of gazing at the night sky with his telescope, he published a book, The Sidereal Messenger, about what he’d seen, such as moons circling ...

On a cold January day in 1642, Galileo Galilei took his last breath ... That's what Galileo did when he pointed his telescope at the heavens and declared that Earth wasn't the centre of the ...