Pun of the Day Booster rockets need to be retired, when they show signs of thrust. 03/17/2024 · The Pun Gents Booster rockets need to be retired, when they show signs of thrust. Tagged: machines, nasa, retirement, rockets, rust, space HilariousPretty GoodOKPretty BadTerrible (4 votes, average: 3.00 out of 5)