Reaching an apogee of 55.45mi (89.24km), the flight satisfied the United States definition of spaceflight (50mi (80.47km)), but fell short of the Kármán line (100km (62.14mi)), the Fédération Aéronautique Internationale definition.
On 22 May 2021, Unity'smother shipVMS Eve carried it into flight in a parasite configuration. At 15:26 UTC,[5]Unity was drop launched. Pilots MacKay and Sturckow flew Unity at a maximum speed of Mach 3 to a maximum altitude of over 89.23km (292,700ft). This altitude surpassed the 50-mile limit used in the United States to denote the limit of space, but fell short of the Kármán line. Both craft landed safely afterwards.
References
↑"Virgin Galactic on Twitter". 22 May 2021. Unity21 made a beautiful ascent to apogee over Spaceport America, New Mexico.
↑"Virgin Galactic on twitter". 22 May 2021. Retrieved 22 May 2021. Space is too good not to share. Our proof is in the incredible views of Earth aboard #Unity21.