Rolls Royce already makes the nuclear reactors for the UK's current fleet of nuclear submarine, and is developing the reactor for the new SSN-AUKUS subs that ar

Rolls Royce already makes the nuclear reactors for the UK's current fleet of nuclear submarine, and is developing the reactor for the new SSN-AUKUS subs that are currently in the design phase. They also market a modular reactor for civilian applications. Presumably these are all based on a common core design and the research grant is to adapt it for space applications. https://www.rolls-royce.com/innovation/small-modular-reactors.aspx#/ https://www.rolls-royce.com/innovation/small-modular-reactor...