Multiple studies and instruments confirm that the lunar surface and its regolith accumulate electrical charges due to continuous exposure to solar wind and ultraviolet radiation.
The claim states that the lunar surface accumulates an electrical charge. Papers [0], [2], [7], [9], and [11] all directly investigate and confirm the electrostatic charging properties of lunar dust, regolith, and simulants resulting from solar wind and radiation exposure. No papers refute the claim. Therefore, the balance verdict is SUPPORTED.