Led by an Israeli scientist, a team of researchers at the California Institute of Technology (Caltech) has reported that they have found what seems to be the oldest galaxy presently known. An article got published in Astrophysical Journal Letters, in which researchers described a proof that showed this galaxy, known as EGS8p7, is over 13.2 billion years old. This showed it came into being 600 million years after the 'Big Bang'. But as per the accepted theories, the universe formed around 13.8 billion years ago.

The researchers have been looking for the earliest objects in universe. The article published was authored by Adi Zitrin, an Israeli post-doctoral fellow who is on a NASA fellowship, and Richard Ellis Zitrin, lead researcher in this project.

The research on the early galaxies comes among most difficult challenges for scientists while studying the universe, trying to reach as close as possible to the moment of its creation.

By locating and investigating such early galaxies, researchers will be able to get answers to a number of very basic questions, including how the formation of first stars and galaxies took place and what were the involved underlying physical processes in it.

The basis of the research is very vast, it can't be narrow as the universe has hundreds of billions of galaxies, with each one of them containing hundreds of billions of stars.