400 years of the telescope

A documentary following the history of the telescope from the days of Copernicus to recent findings from the Hubble Telescope; 400 Years of the Telescope opens in 17th century Florence, Italy, with Galileo training his spyglass on the heavens and discovering that Jupiter has four moons; Venus has phases like the Moon; and most shocking of all: the Earth is not the center of the universe.

A documentary following the history of the telescope from the days of Copernicus to recent findings from the Hubble Telescope; 400 Years of the Telescope opens in 17th century Florence, Italy, with Galileo training his spyglass on the heavens and discovering that Jupiter has four moons; Venus has phases like the Moon; and most shocking of all: the Earth is not the center of the universe.

A documentary following the history of the telescope from the days of Copernicus to recent findings from the Hubble Telescope; 400 Years of the Telescope opens in 17th century Florence, Italy, with Galileo training his spyglass on the heavens and discovering that Jupiter has four moons; Venus has phases like the Moon; and most shocking of all: the Earth is not the center of the universe.

Microsoft WorldWide Telescope - a unique program from Microsoft, turns your PC into a powerful 3D virtual telescope, through which the distant and unreachable stars, constellations, the planets will be much closer.

In the 1960's, American amateur astronomer, John Dobson, designed a revolutionary kind of astronomical telescope featuring a lightweight large-aperture reflecting system on a simple mounting, using the then-revolutionary material called teflon. The design combines simplicity and portability with large-aperture prowess. Thirty years later Dobsonians remain supreme for visually observing faint deep-sky objects and are one of the best-selling large telescopes in the USA and Europe.

Choose from a growing number of guided tours of the sky by astronomers and educators from some of the most famous observatories and planetariums in the country. Feel free at any time to pause the tour, explore on your own (with multiple information sources for objects at your fingertips), and rejoin the tour where you left off. Join Harvard Astronomer Alyssa Goodman on a journey showing how dust in the Milky Way Galaxy condenses into stars and planets. Take a tour with University of Chicago Cosmologist Mike Gladders two billion years into the past to see a gravitational lens bending the light from galaxies allowing you to see billions more years into the past.

Sky & Telescope has been the world's leading source of accurate and up-to-date information about astronomy and space science. Edited for the full spectrum of active astronomy enthusiasts worldwide, from novice, devoted amateur to professional.

Sky & Telescope has been the worlds leading source of accurate and up-to-date information about astronomy and space science. Edited for the full spectrum of active astronomy enthusiasts worldwide, from novice, devoted amateur to professional.

Choosing and Using a Refracting Telescope has been written for the many amateur astronomers who already own, or are intending to purchase, a refracting telescope – perhaps to complement their existing arsenal of larger reflecting telescopes – or for the specialist who requires a particular refractor for serious astronomical applications or nature studies.

Australian Sky & Telescope is a world-class magazine about the science and hobby of astronomy, specifically produced for the Southern Hemisphere. It caters for everyone with an interest in space and astronomy, from the absolute beginner to the seasoned observer