Last name: Guerra. This unusual and interesting surname is of Old French pre 9th century origins. Recorded in many spellings including Guerre, Guierre, Laguerre (French), Guerra, Guerrero, (Spanish), Guerreiro (Portugese), Guerri (Italian), Guerriero (Sicillian), and Warr or Warre (English), the name derives from the word 'guerre' meaning 'war'.
Instead, Galileo disproved the Ptolemaic theory, sanctioned for centuries by the Church, which held the Earth to be the central and principal object in the universe, about which all celestial objects orbited.
Â· just now. 1  The basic reason that Galileo Galilei is the father of modern science is that he put into use the scientific method. With Aristotle science was derived from everyday observations. 2  Galileo Galilei was referred to, in his day, as the father of modern astronomy, physics and science by various academics. One misconception that has lasted many years is that Galileo Galilei invented the telescope, which he did not.