The JMC Red Dwarf is a mountainous mining vessel owned by the Jupiter Mining Corporation and commanded by Captain Frank Hollister. It is 6 miles (10 km) long, 5 miles (8 km) tall, and 4 miles (6 km) wide. The jagged shape and dull red colour of the vessel has led to the vessel being described as a "giant red trash can". All of Red Dwarf's systems are controlled by the computer Holly. A small asteroid is embedded in Red Dwarf's underbelly. The "scoop" on the front of the ship sucks hydrogen from the currents in space and converts it into fuel. Red Dwarf has a large complement of shuttles, including Starbugs and Blue Midgets. Red Dwarf is powered by a Bussard ramjet and can, theoretically, keep going forever. Red Dwarf has botanical gardens, and third-class technician Dave Lister and second-class technician Arnold Rimmer were sent off to repair a "faulty porous circuit" there. The crew size is 169: Lister's crew number is 000169.
It has so far been travelling for roughly 3,000,000 years, and a few centuries on top of this. The ship has enough food and drink to last 30,000 years, but they have run out of Shake'n'Vac, and there is only one After Eight mint left.
The Red Dwarf has a number of mobile semi-autonomous waldo units called "Scutters," which look like a Luxo lamp with a mechanical hand in place of the lamp unit.
The ship's computer, nominally having an IQ of 6,000 ("the equivalent of 600 high-school gym teachers"), is now quite senile, having been all alone for 3,000,000 years. He originally had the appearance of a balding middle-aged man, but later rebooted with a female appearance. Both iterations speak with a pronounced Cockney accent. Holly is, simply, quite mad.