<classify> Pafupifupi zaka zikwi zitatu zitadutsa, muchaka cha 1610, katswiri waku Italy wowona zakuthambo, a Galileo Galilei adagwiritsa ntchito makina a telescope kuti awone ngati Venus ali ndi magawo ngati mmene mwezi ulili.  <topic>: sciencetechnology 