It intends to devote this international meeting to reviewing recent understanding of underlying physics of the early Universe. In a pioneering way, this international conference combines both high-energy physics, especially in LHC era, and cosmology. The Large Hadron Collider (LHC) is a gigantic scientific instrument that is the world's largest and most powerful particle accelerator ever made. It spans the border between Switzerland and France about 100m underground. It is to study the smallest known particles – the fundamental building blocks of all things. The beams inside the LHC are made to collide at four locations where ATLAS, CMS, ALICE and LHCb are installed. Surely, LHC will revolutionise our understanding, from the minuscule world deep within atoms to the vastness of the Universe. Based on RHIC and currently LHC results, the early Universe would have behaved like a super-hot liquid immediately after the Big Bang. Concretely, the quark-gluon plasma created in these experiments does not form a gas as predicted, but instead suggest that the very early Universe behaved like a hot and might be viscous liquid. Implementing these results on characterizing the matter filling the background geometry would drastically change the traditional picture about the early Universe, references.