Just announced, the Society For Popular Astronomy has up to 1000 telescopes to give to qualifying UK schools, as part of their IYA2009 International Year of Astronomy celebrations. read on..
Uranus was unknown before 1781 when William Herschel discovered it using a telescope. It was therefore the first planet to be discovered by modern astronomy.
Prior to this and going back to ancient times, only the five planets which can be seen with the unaided eye (Mercury, Venus, Mars, Jupiter and Saturn) were known. read on..