Galactic 05 was a crewed sub-orbital spaceflight of the SpaceShipTwo-class VSS Unity, which launched on 2 November 2023.

Stern performed studies of human body's reaction to zero-gravity by wearing a biomedical monitoring harness.

He also wanted to develop in-space operation of a particular high-tech camera that is planned to be used on an astronomical research mission in the future by NASA.

[2] Gerardi flew the Galactic 05 mission as a payload specialist doing scientific research with Alan Stern, a private passenger also on board.

She also wore the Astroskin biomonitoring device to collect a wide range of biometric data during her flight.