Galileo Galilei’s Discovery: A Groundbreaking Moment in Astronomy
On January 7th, 1610, Italian astronomer Galileo Galilei made a groundbreaking observation that forever changed our understanding of the solar system. Using his newly improved telescope, Galileo discovered the four largest moons of Jupiter—Io, Europa, Ganymede, and Callisto. These moons, now collectively known as the Galilean moons, provided some of the first evidence that not […]