  We give an overview of results and prospects of nuclear clustering studies on
the grounds of the observations of interactions of light stable and radioactive
nuclei with an initial energy above 1 A GeV in nuclear emulsions. Thank to the
best spatial resolution and the full solid angle acceptance provided by nuclear
emulsions, such an approach allows one to obtain unique and evident
observations reecting cluster-like features in light nuclear structures. New
results on dissociation of $^7$Be in very peripheral interactions with emulsion
nuclei are presented. The importance of this research for the physics of few
body nuclear systems and the related problems of nucleosynthesis is noted. The
paper is illustrated with characteristic images obtained by means of a
microscope equipped with a CCD camera. The discussed explorations are provided
with the beams of the Synchrophasotron and Nuclotron of JINR, Dubna. Future
investigations are suggested to be carried out in relativistic beams of He, Be,
B, C, and N isotopes.
