  We present theoretical argument, based on virial theorem and De Broglie idea
from 1924, why the small hydrogen may exist. It may have been created during
early stages of the Big Bang, near black holes or large explosions in Universe.
In principle, it could be formed in high energy experiment. Being neutral and
stable, it would play a significant role in a formation of early galaxies. It
would not be observable using usual spectroscopic methods. This paper suggests
methods to discover the small hydrogen.
