Even people who are not interested in astronomy have heard their nameGalileo GalileiI discovered the crater of the moon and satellites of Jupiter using the telescope I created by himself, and it was ...

23 January 2009, Paris: One of the International Astronomical Union’s contributions to the International Year of Astronomy 2009 is the new book and movie Eyes on the Skies — 400 Years of Telescopic ...

The critical issue -- The technology of grinding crystals in antiquity and the Middle Ages -- The reading stones (lapides ad legendum) -- The first dioptrical vision aids -- Glass techniques in the ...