Vladimir Putin visits Greenwich Observatory with Prince Andrew

The video discusses the historical context of a telescope and the astronomical challenge of finding a planet beyond Uranus. It explains how the gravitational effects on Uranus indicated another planet's presence. A young Frenchman played a significant role in this discovery, despite initial skepticism.

What was the significant astronomical problem mentioned in the text?

Describe how astronomers knew there was a planet beyond Uranus.

Who knocked on the observatory door and what was their significance?

How did the local astronomers perceive the situation at the time?

What were the two reasons mentioned that led to doubt about the astronomical findings?