The Jellyfish is a scout ship from the future and another dimension. It was once piloted by Ambassador Spock on his mission to save Romulus from destruction in the Prime reality. Since its arrival in this dimension, the Jellyfish has been extensively studied by Federation scientists for its extremely advanced technology. Despite it being a high-tech vessel, the Jellyfish was designed as a science vessel and has relatively weak defenses and is now commonly used as a fast Explorer.