A 32nd-century Federation starship commanded by the Kellerun captain Rayner, which worked with the USS Discovery in the pursuit of Moll and L'ak in 3191.
This USS Antares was a Starfleet ship of the 32nd century, the command of Captain Rayner, a blunt and aggressive Kellerun officer. It appears in Red Directive, the first episode of the fifth season of Discovery.
The Antares and Discovery are both sent under a secret Red Directive to recover an object from an 800-year-old Romulan science vessel. The couriers Moll and L'ak get to it first. In the chase that follows, Rayner tries to hold their ship in a tractor beam, and later pushes on with the pursuit on Q'Mau, where the fugitives set off an avalanche that threatens a settlement.
The two ships have to combine their shields to stop it. Rayner's conduct costs him the Antares, and he becomes Burnham's first officer on Discovery.