SSTAR is an acronym for the "small, sealed, transportable, autonomous reactor" - being primarily researched and developed in the USA by Lawrence Livermore National Laboratory. It is intended as a fast breeder reactor that's passively safe, has a self-contained fuel source of Uranium-238 and an operative life of 30 years, which provides a constant power source between 10 and 100 megawatts. The 100 megawatt version is expected to be 15 meters high by 3 meters wide, and weigh 500 tonnes. A 10 mega… (More on Sstar)