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Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
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/