The unusual morphology and internal structure of bubbles within lunar regolith impact glasses has been studied using traditional scanning electron microscopy and novel technique transmission X-ray microscopy (TXM), with 3-D tomography reconstruction.Here, we show the previously unknown phenomenon of building a highly porous cellular structure within bubbles in glassy particles of the dust fraction of lunar regolith.Vesicles within studied lunar glasses are not smooth and are filled in submicron in size particles as shown in presented micrograph. These particles form the finest lunar dust features, and consist of glass micro-droplets and their broken irregular fragments. These lunar regolith constituents were noticed before but never discussed, and their presence was mostly overlooked and treated as the soil contaminants. Shown in the TXM tomography reconstruction anaglyph demonstrates cellular like, 3-D structure where oblique probably glassy fine particles down to 100 nm in diameter build chains of sophisticated network. It also may be suggested that submicron and nano in size grains present in lunar regolith are result of particle liberation from broken glassy vesicles. This liberation taking place when regolith is exposed to constant impact pulverisation. Liberated particles are permanently enriching lunar soil in finniest soil constituent. This constituent presence in lunar regolith may be responsible for the unusual behaviour of lunar material. This unusual constituent of lunar regolith and its properties has to be better understood before our permanent lunar exploration begins.