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.
Galileo is famous for discovering the Galilean moons (Jupiter's four largest moons--Io, Ganymede, Europa, and Callisto) Galileo is most famous for his scientific hypothesis that the Earth revolves around the sun, rather than the sun revolving around Earth, as most people believed in that day. He went to trial for his hypothesis because of its apparent contradictory nature to the Scripture, or Bible.