1610: Galileo , using his telescope, on 7 Jan 1610 discovers the 4 largest Moons of Jupiter;
(Galileo; discovers; the 4 largest Moons of Jupiter; T:on 7 Jan 1610) Context(Galileo discovers,List([6, 60))):(Galileo; discovers the 4 largest Moons of Jupiter using; his telescope)
Galileo discovers,List([6, 60))
Galileo Galileo
discovers discovers the 4 largest Moons of Jupiter using
the 4 largest Moons of Jupiter T:on 7 Jan 1610
his telescope