The NASA Distinguished Service Medal is the highest award that can be bestowed by the National Aeronautics and Space Administration of the United States. The medal may be presented to any member of the federal government, including both military astronauts and civilian employees.

The Congressional Space Medal of Honor was authorized by the United States Congress in 1969 to recognize "any astronaut who in the performance of his or her duties has distinguished himself or herself by exceptionally meritorious efforts and contributions to the welfare of the Nation and mankind". It's awarded by the President of the United States in Congress's name on recommendations from the Administrator of the National Aeronautics and Space Administration. The award is a separate decoration from the Medal of Honor, which is a military award for extreme bravery and gallantry in combat.