Galileo di Vincenzo Bonaulti de Galilei ( [ɡaliˈlɛːo ɡaliˈlɛi]  ; 15 uFebhuwari 1564   - 8 Januwari 1642) wayeyisazi sezinkanyezi sase-Italy, isayensi yezokwelapha kanye unjiniyela, kwesinye isikhathi ochazwa njenge- polymath, evela ePisa. Galileo ubizwe "ngubaba wesayensi yokufunda izinkanyezi", "ubaba wesayensi yesimanjemanje", "ubaba wendlela yesayensi", kanye "nobaba wesayensi yanamuhla". Galileo wafunda isivinini kanye ne- velocity, amandla adonsela phansi nokuwa kwamahhala, umgomo wokuhlobana, i- inertia, ukunyakaza kwe-projectile futhi wasebenza nesayensi esetshenzisiwe nobuchwepheshe, echaza izakhiwo ze- pendulums kanye "nemizila ye-hydrostatic", wasungula i- thermoscope namakhampasi ahlukahlukene ezempi, nokusebenzisa isibonakude sokubonwa kwesayensi kwezinto zasezulwini. Amagalelo akhe ekubukweni kwezinkanyezi ahambelana nakho afaka phakathi ukuqinisekiswa kwe-telescopic kwezigaba uVenusi, ukubonwa kwesiphuphutheki esikhulu kunazo zonke UNdonsakusa, ukubonwa kwamakhonkolo uSatureni, kanye nokuhlaziywa kwezimpawu zelanga. Ukuwina kukaGalileo i heliocentrism ne Copernicanism kwakuyimpikiswano ngesikhathi sokuphila kwakhe, lapho iningi lababhalisela amamodeli we-geocentric anjengohlelo lweTychonic. Uhlangane nokuphikiswa okuvela kwizazi zezinkanyezi, ezazingabaza i heliocentrism ngenxa yokungabikho kwephalamende elibukhali .