  A scenario is presented where large quark-gluon plasma (QGP) objects escaping
the quark-hadron transition in the early Universe account for the baryonic dark
matter as well as act as the sources for gamma-ray bursts. Two basic
assumptions are made. Firstly, we assume that a QGP consisting of u,d and s
quarks is the absolute ground state of QCD and secondly, that the quark-hadron
transition in the early Universe was of first order. Both particle physics and
astrophysics constraints are discussed, mainly from an observational point of
view.
