Astronaut wings

Astronaut badge (US Army: Astronaut device)
Awarded by United States
Type	Badge
Awarded for	Completing training and traveling in a spaceflight, as defined by NASA or the United States Department of Defense.
Status	Currently awarded
Statistics
Last awarded	Ongoing
Army Precedence
Next (higher)	Army aviator badges
Next (lower)	Flight surgeon badge

The astronaut badge is a badge of the United States, awarded to military pilots, naval flight officers, navigators/combat systems officers (this badge can also be awarded to USAF officer astronauts who are not navigators/CSOs, but who wear the same insignia while designated as astronaut-qualified Air Force "observers"), flight surgeons, and civilian pilots who have completed training and performed a successful spaceflight. A variation of the astronaut badge is also issued to civilians who are employed with the National Aeronautics and Space Administration as specialists on spaceflight missions. It is the least awarded qualification badge of the United States military.

To earn an astronaut badge, a military officer must complete all required training and participate in a space flight more than 100 kilometers (62 miles) above the Earth. This boundary, known as the Kármán line, comes from the Fédération Aéronautique Internationale. However, in the 1960s, the United States Department of Defense awarded astronaut badges to military and civilian pilots who flew aircraft higher than 50 miles (80 kilometres). Seven USAF and NASA pilots qualified for the astronaut badge by flying the sub-orbital X-15 rocket spaceplane. American test pilots Michael Melvill and Brian Binnie were each awarded a commercial astronaut badge by the Federal Aviation Administration (FAA) when they flew sub-orbital missions aboard the Scaled Composites SpaceShipOne rocket spaceplane. All other men and women awarded the astronaut badge earned it travelling to space in non-winged rockets, the X-15, or the Space Shuttle.

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Wikipedia