© United States Postal Service. All rights reserved.
On September 23, 1846, Astronomer Johann Galle pinpointed the planet Neptune through a telescope at the Berlin Observatory in 1846. To celebrate this event, the National Postal Museum has created a mini-exhibit highlighting different postage stamps with connections to the Planet Neptune and the timeline of its discovery. Look for the connection to our virtual museum's namesake! Visit this exciting new mini-exhibit at http://postalmuseum.si.edu/AragoNeptune