Neptune
Concept
A planet not known to ancient Hellenic peoples due to its invisibility to the naked eye.
Mentioned in 6 videos
Common Themes
Videos Mentioning Neptune

A Conversation with Werner Vogels
Y Combinator
AWS's managed graph database service, mentioned as an example of a team with direct customer contact to define its roadmap.

Brian Keating: Cosmology, Astrophysics, Aliens & Losing the Nobel Prize | Lex Fridman Podcast #257
Lex Fridman
Planet whose discovery was predicted based on the anomalous behavior of Uranus, serving as a successful 'dark matter' prediction.

Mapping the Heavens to Understand Dark Matter and Black Holes
Fermilab

Katherine de Kleer: Planets, Moons, Asteroids & Life in Our Solar System | Lex Fridman Podcast #184
Lex Fridman
Mentioned alongside Uranus for having methane ice particles in its atmosphere, contributing to its storm systems.

Ann Druyan: Cosmos, Carl Sagan, Voyager, and the Beauty of Science | Lex Fridman Podcast #78
Lex Fridman
One of the planets observed by the Voyager spacecraft.

The Psychology of Astrology
Eternalised
A planet not known to ancient Hellenic peoples due to its invisibility to the naked eye.