Portal:Philosophy of science/Selected picture/1

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A page from Galileo's published discovery of the moons, which appeared in Sidereus Nuncius in March 1610.
Credit: NASA/JPL

It was on this page that Galileo first noted an observation of the moons of Jupiter. This observation upset the notion that all celestial bodies must revolve around the Earth. Galileo published a full description in Sidereus Nuncius in March 1610.