Virgin Galactic Unity 21[1] was a sub-orbital spaceflight of the SpaceShipTwo-class VSS Unity which took place on 22 May 2021, piloted by David Mackay and co-piloted by Frederick Sturckow.

[2] It was operated by Virgin Galactic, a private company led by Richard Branson which intends to conduct space tourism flights in the future.

Unity 21 was the first human spaceflight to be launched from Spaceport America.

[3][4] Reaching an apogee of 55.45 mi (89.24 km), the flight satisfied the United States definition of spaceflight (50 mi (80.47 km)), but fell short of the Kármán line (100 km (62.14 mi)), the Fédération Aéronautique Internationale definition.

On 22 May 2021, Unity's mother ship VMS Eve carried it into flight in a parasite configuration.