It has a mass of 30 kg (66 lb) and its diameter, which includes the resources mounted on it, is about 60 cm (24 in). Dimensions: Curiosity has a mass of 899 kg (1,982 lb) including eighty kg (180 lb) of scientific devices. Communication from and to Curiosity depends on internationally agreed area information communications protocols as outlined by the Consultative Committee for Space Data Systems.