Today In History (January 7 1610) Galileo
Posted: Sat Jan 07, 2023 9:48 am
TODAY IN HISTORY
1610: Galileo Galilei makes his first observation of the four Galilean moons: Ganymede, Callisto, Io, and Europa.
- yupiter-planeta-sputniki-io-750x469.jpg (50.82 KiB) Viewed 340 times