What revolutionary optical technology initiated the real transformation in understanding the Milky Way's nature around 1610?
Answer
The refracting telescope
The real transformation in understanding the Milky Way came not from philosophy, but from a revolutionary piece of optical technology, specifically Galileo's improved refracting telescope capable of unprecedented clarity.

Related Questions
What did ancient observers primarily perceive the Milky Way to be before the use of telescopes?What revolutionary optical technology initiated the real transformation in understanding the Milky Way's nature around 1610?In what year did Galileo Galilei publish his findings detailing that the Milky Way was a mass of innumerable stars?What was the immediate observational effect when Galileo turned his refined instrument toward the Milky Way?Which Greek philosopher is noted in the text for having speculated that the Milky Way was composed of distant stars?What critical distinction must be noted regarding Galileo's proof about the Milky Way's composition?What effect did Galileo's confirmation have on the perceived scale of the cosmos immediately following his discovery?Which later astronomer attempted to map the distribution of Milky Way stars but was limited by an uncorrected factor?What question did Galileo's discovery open up, succeeding the debate he closed regarding the *nature* of the light?How did the appearance of the Milky Way stars observed by Galileo contrast with his observation of Jupiter's moons through the same instrument?