The remaining four space shuttles can be viewed in US museums:

certified and signed on the title page by Apollo 17 commander Eugene Cernan

During the X-15 program

marking a major milestone for the European Space Agency and Europe’s permanent presence in human spaceflight

Soyuz MS-28 prime crew Bill Pogue The remaining four space shuttlesSoyuz MS 28 Crew Hand Signed Crewphoto An exceptional space collectible commemorating the Soyuz MS 28 mission, hand signed by the full flight crew. This authentic 6x4'' crew glossy photo has been personally autographed by: Sergey Kud Sverchkov Roscosmos Cosmonaut, Mission Commander Sergey Mikaev Roscosmos Cosmonaut Christopher Williams NASA Astronaut Soyuz MS 28 launched successfully to the International Space Station, continuing the long standing