Today In History (January 7 1610) Galileo

"Today In History" daily archive from National Vanguard
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WhiteHealer

Today In History (January 7 1610) Galileo

Post by WhiteHealer » Sat Jan 07, 2023 9:48 am

TODAY IN HISTORY
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1610: Galileo Galilei makes his first observation of the four Galilean moons: Ganymede, Callisto, Io, and Europa.

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