The latter two sources are limited to those few areas where surface water seeps down through underground faults or fractures to reach deep rocks heated by the recent activity of molten rock material.
What the researchers found deep in the lunar interior: a solid iron ball 300 miles across, wrapped in molten iron another 56 miles thick, topped with a 93-mile layer of partially moltenmaterial.
Mr.Wang had been in a basement room when a spark from a welder's torch fell and ignited the fumes of the waterproofing material he was applying, alighting his clothes and leaving him a molten mess.