Galileo's observation records indicate that in late 1612 he observed the planet Neptune. However, at this time Neptune was just beginning its retrograde cycle and so appeared stationary and too small to be a planet. Galileo took it to be a fixed star.
But what if Galileo had made his observations a few days earlier before the retrograde cycle had begun? He realises that he is observing a previously unknown planet and once he makes a few more observations and confirms this thought, he publishes his findings.
What will the implications of the 'discovery' be?
But what if Galileo had made his observations a few days earlier before the retrograde cycle had begun? He realises that he is observing a previously unknown planet and once he makes a few more observations and confirms this thought, he publishes his findings.
What will the implications of the 'discovery' be?