A suborbital science lab has been installed within the cabin of the SpaceShipTwo aircraft VSS Unity, which is the rocket-powered spaceplane that transports passengers for Virgin Galactic.

Source: https://thecurrent-online.com/news/how-long-is-the-virgin-galactic-flight/53050/

The Mk-II Aurora spaceplane will host earth monitoring, microgravity research, disaster management, and atmospheric measurement.

Source: https://gizmodo.com/new-zealand-dawn-aerospace-spaceplane-test-flights-1850261074

The Orion III spaceplane from the movie 2001: A Space Odyssey, is being purchased by United Airlines for daily flights to the moon.

Source: https://www.forbes.com/sites/benbaldanza/2023/04/01/the-craziest-airline-news-of-the-week-only-one-us-airline/

The Pentagon has not said how high the spaceplane would fly this time out.

Source: https://www.ndtv.com/world-news/us-militarys-secretive-x-37b-spaceplane-ready-for-launch-to-higher-orbit-4760333

Virgin Galactic's SpaceShipTwo suborbital spaceplane, VSS Unity, attached to its VMS Eve mothership ahead of its June 29 flight.

Source: https://spacenews.com/spaceshiptwo-to-demonstrate-research-capabilities-on-first-commercial-flight/