Galileo Galilei was a ground-breaking astronomer who discovered, among other things, several of Jupiter’s moons. To explore the skies, he relied on a telescopes that magnified objects with ...

The Galileo Project website, which inspired the creation of our large telescope, lists plans for building a sufficient base. Building a simple Galilean telescope (about 9x magnification) ...

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

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 ...

At the dawn of the 17th Century, Galileo Galilei began the first major search of the night sky (as well as the Sun!) using a new Dutch invention — the telescope. In the era when William ...

Galileo's refractor and Newton's reflector remain the two standard kinds of optical telescopes today. Learn more about these two types of telescopes.

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 ...