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Whose notebook am I reading?

January 8, 2014

galileo notebook

 This is a page from Galileo’s notebook.  On this day in 1610, he recorded his observations of the moons of Jupiter, noting that they did not behave as stars, but appeared to travel with the planet.  It was this and other observations that cause Galileo trouble with the church.  They are also the reason his name and work endure today – 404 years later.  While Galileo was able to discern Jupiter’s 4 largest moons, the actual number of this planet’s moons is 50 or more. Thanks to Lights in the Dark for this reference.

JupiterMoons.

jup moons

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