Astronomy Picture of the Day: 175 years ago today, the search for planet Neptune was successful

175 years ago today, the search for planet Neptune was successful for German astronomer Johann Galle. He was able to find it by using French astronomer Urbain-Jean-Joseph Le Verrier's calculations of this yet-unknown planet. pic.twitter.com/kENu8pGofF

— National Air and Space Museum (@airandspace) September 23, 2021