Superconductivity in most metals is due to the activity of longitudinal spin waves binding electrons into pairs in such a way that the Meissner effect is generated along with the angular momentum responses in static magnetic fields. The bulk of these spin waves appear to be sourced by nuclear spins on the lattice. Experimentally longitudinal spin waves are not difficult to detect at room temperature as they form Bose-Einstein condensates that have onset temperatures, > 1000oK, for the low mass entities, less than 10−40kg. These large scale quantum structures on the order of 1 meter are ubiquitous in metals and will also exist in space with low density matter where the ambient static magnetic fields are weak and temperatures are low. These massive boson collections probably are the source of the gravitationally detected dark matter in space and these experiments provide a test bed to understand their properties.