So when Galileo, then 45 years old, turned his telescope to the heavens in the fall of 1609, it was a small act of dissent. He saw that the Milky Way was in fact "a congeries of innumberable stars ...

Galileo Galilei was the founder of modern physics ... It was concerned with the story that Archimedes had found a way of discovering if a crown made for King Hiero of Syracuse was in fact of ...

The Event Horizon Telescope captured the first image of the Milky Way galaxy's supermassive black hole Sagittarius A* — our ...