Star Trek Stamps
The USPS issued these Forever stamps to celebrate the 50th anniversary of the "Star Trek" premiere in 2016. "Star Trek" first premiered on Sept. 8, 1966.
Stamped Envelopes Depict Space Missions
Envelopes with stamps depicting various space missions are shown at the visitor's center of the Tanegashima Space Center, Feb. 23, 2014, Tanegashima Island, Japan.
China's First Moon Landing Double-Pane Stamps and Lunar Probe Medals
China Post's double-pane stamps, "In Commemoration of China's First Moon Landing," and ICBC's "Lunar Probe" medals celebrate the Chang'e-3 spacecraft and Yutu rover.
'20th Anniversary Moon Landing' and 'Project Mercury' Stamps Reproductions
Enlarged reproductions of the "20th Anniversary Moon Landing" and "Project Mercury" stamps adorn the windows of the William H. Gross Stamp Gallery at the National Postal Museum.
Stamps Honor First American in Space, Mercury Probe
U.S. Postal Service Vice President Stephen Masse, left, and Mercury astronaut Scott Carpenter, right, unveil new stamps honoring first American in space Alan Shepard and NASA’s MESSENGER spacecraft.
Alan Shepard, the first American to fly into space, became the first NASA astronaut to be honored with a U.S. Postal Service stamp in 2011.
mercury messenger stamp and artwork
The U.S. Postal Service will release, on May 4, 2011, a stamp to celebrate the first spacecraft to orbit Mercury.
Secret Stamp for John Glenn's Flight
The 1962 4-cent "Project Mercury" stamp marked the first time that the U.S. issued a previously unannounced commemorative stamp at the same time as the event it was issued to honor: John Glenn’s historic Friendship 7 spaceflight.
Alan Shepard and MESSENGER Stamps
The U.S. Postal Service issued on May 4, 2011 a pair of stamps for the first U.S. astronaut and the first probe to orbit Mercury.
Concept for New Horizons Postage Stamp
Artist Dan Durda's concept for a U.S. postage stamp honoring the New Horizons mission to Pluto.