Using the Hubble and Keck telescopes, the new object was first seen in a cluster of galaxies known as Abell 2218, according to the study published in Astrophysical Journal.
It is forming stars and is a very energetic source, so it may be an example of an object from that early time when the universe was just 750 million years old, the BBC reported.
"The new object is a small and compact system of stars," said Professor Richard Ellis told the annual meeting of the American Association for the Advancement of Science in Seattle this weekend.
"It's about 2,000 light-years across; our own galaxy by comparison is about 60,000 light-years across."
It is forming stars prodigiously and is a very energetic source, according to Ellis.