🎴 Flashcard Mode
GK Years of Invention and Discovery
Card1 / 25
Mastered0
Review0
QuestionClick to flip
Neptune (planet)
AnswerClick to flip back
A
1846
💡 Explanation:
Neptune was discovered on September 23, 1846 by Johann Gottfried Galle, based on mathematical predictions by Urbain Le Verrier. The discovery confirmed the existence of an eighth planet beyond Uranus.