Moya was a Leviathan transport, a sentient, organic space ship previously in the captivity of the Peacekeepers before her prisoners escaped, allowing her to be free of her control collar and escape herself. She was 23 cycles old when John Crichton came aboard, making her 27-28 cycles old at the end of the Peacekeeper/Scarran War.
Being biomechanoid Moya contains both biological and technological components.
Moya, like all Leviathans, had no weapons and was capable of only one defensive maneuver, Starburst. The ability to Starburst is a faster than light drive system that is unmatched in its ability to evade pursuers.
Moya has become a friend and home to her crew and they have been through many bizarre, disheartening, and exhilarating events together. Indeed, on one occasion, when Crichton was asked why the crew were fighting so hard to save Moya, Crichton compared Moya to a mother, as she ‘gave birth’ to all of them by bringing them together and giving them a home.
She has given birth to one offspring, a male by the name of Talyn, named by Aeryn Sun after her father. Due to a genetic altering project that occurred a few cycles before her escape she is capable of producing Leviathan-Gunship hybrids, of which Talyn is one.