Stumbos IV is a planet with a huge gravity that appears on Futurama. In Brannigan, Begin Again, the ship Planet Express was sent to this world to deliver 40 pillows to a hotel. According to Professor Farnsworth, the gravity is so strong that a person could be crushed by the weight of his own hair, although this may only happen if you have a large quantity of hair, like an afro or a mullet.