Gingerich, Owen <br/><br/>
Mankind's place in universe. 

<br/><br/> Technological developments in astronomy have  long helped to answer some of the greatest  questions tackled  by humanity.The implications " of the "Heliocentric" circles and the findings"  of Galileo has been eplained in detail.  
<br/><br/><label>Subjects--Index Terms: </label>Astronomy, Galileo , Heliocentrism, Astro year