The USS Antares (NCC-734) was the prototype Antares-class surveyor in service to the Federation Starfleet in the mid-23rd century. Between 2250 and 2258, the Antares explored the near reaches of the Beta Quadrant. (Ship Recognition Manual, Volume 4: Starships of the Original Series Era) The Antares was destroyed by an antimatter explosion in 2266, when the ship's baffle plate was "removed" by Charlie Evans. (TOS: "Charlie X"; Ship Recognition Manual, Volume 4: Starships of the Original Series Era)