What is the altitude boundary for awarding astronaut wings traditionally recognized by the United States military and NASA?

Answer

50 miles (approximately 80.5 kilometers)

The United States military and NASA traditionally recognize a lower altitude of 50 miles, which converts to approximately 80.5 kilometers, as the boundary for awarding astronaut wings.

What is the altitude boundary for awarding astronaut wings traditionally recognized by the United States military and NASA?

#Videos

Where does outer space begin? - YouTube

SpaceEarthboundaryatmosphere