What was the immediate observational effect when Galileo turned his refined instrument toward the Milky Way?

Answer

The seamless milkiness dissolved into discrete sources

Where the unaided eye perceived seamless milkiness, the telescope revealed structure, showing the light was not a continuous substance but rather an accumulation of discrete sources.

What was the immediate observational effect when Galileo turned his refined instrument toward the Milky Way?
discoveryGalileoastronomytelescopeMilky Way