According to researchers, there is a possibility that water might have been present in large quantity during the first billion years or during the existence of the universe. The scientists said that it was at the same level that is present in our galaxy presently.

As per the researchers from the Harvard-Smithsonian Center for Astrophysics, led by astrophysicist Avi Loeb, it has been found that the formation of water molecules in the early days after the Big Bang needed some time.

Some theoretical evidence is there that the amount of water vapor in the universe in the first billion years following the formation of the universe might have been as burgeoning as it is now.

The chemistry of young molecular clouds has been studied by the team of researchers. These young molecular clouds contained only one-thousandth the amount of oxygen of our own sun. Certainly, Oxygen is one of the building blocks of water.

According to the researchers, in the early days of the universe, there was little to no oxygen because the majority common elements were just hydrogen and helium. So as a result, the initial stars that created in the wake of the Big Bang were both huge and very short-lived.

At the time of the life cycle of these stars, heavier elements like oxygen were formed and borne by supernovae and stellar winds out into the universe. Then gas clouds were filled with these elements that were spread all through the known universe. According to the researchers, still these gas clouds were very low in oxygen, particularly when compared to gas clouds found within our own galaxy presently.