Astronomy
2 inventions in this category
Discovery of Neptune
Neptune is the only planet in the solar system discovered not by looking at the sky, but by solving equations. On September 23, 1846, Johann Gottfried...
Discovery of Uranus
Uranus had been seen at least twenty times before William Herschel looked at it through his homemade telescope on March 13, 1781. John Flamsteed catal...