Group 1 - Rolls-Royce Holdings Plc has halted its plan to develop a mini nuclear reactor for the Moon due to a lack of potential partners, despite receiving £9 million ($12 million) in government funding [1][2] - The project aimed to prepare a nuclear micro-reactor for lunar deployment by 2029 and was supported by the UK Space Agency [1][2] - Rolls-Royce is still open to resuming work on the project if suitable partners are found [1] Group 2 - The initiative was part of exploring how nuclear power could support future Moon bases for astronauts [2] - Rolls-Royce received £2.9 million from the UK Space Agency in March 2023 to investigate the use of nuclear power for lunar bases, working on two contracts focused on concept design and product development [4] - The news contrasts with the US's renewed commitment to nuclear research for Moon exploration, highlighting the potential of nuclear energy as a viable power source for sustained lunar missions [3]