Galileo's Telescope - 400th anniversary
We are in the age of the space telescopes and beyond. However it all started 400 years back with the famous Mr Galileo's telescope. Galileo Galilei demonstrated his telescope, which lead him to make new astronomical observations.
Galileo Galilei did not invent the telescope but was the first to use it systematically to observe celestial objects and record his discoveries.
Heres paying tribute to Galileo and his telescope which sparked off the revolution in astronomy or space research.
While many people have been loudly celebrating this year's double commemoration of 200 years since Charles Darwin's birth and 150 years since the publication of On the Origin of Species, another scientific anniversary has crept up relatively quietly, marking an event which arguably changed human thought and the way we see ourselves even more irrevocably.
Exactly 400 years ago today, on 25 August 1609, the Italian astronomer and philosopher Galilei Galileo showed Venetian merchants his new creation, a telescope – the instrument that was to bring him both scientific immortality and, more immediately, a whole lot of trouble.
A refinement of models first devised in the Netherlands, Galileo's slim, brown stick was puny even by the standards of something one might buy in hobby shop today. But his eight-powered telescope, and the more powerful models he soon produced, when pointed skywards led Galileo to a series of groundbreaking conclusions.