Astronomers have tracked down a gigantic black hole, they watched as it was less than a billion years after the Big Bang. No theory currently does clearly explain its existence.

Astronomers said Wednesday in the journal Nature have discovered a black hole at once “monstrous” and very old, challenging current theories about how these objects are developed in the early Universe.
A black hole is a celestial object so dense that it causes the formation of a gravitational field that even light can not escape. One can not detect the black hole itself, but is betrayed by the gravitational influence it exerts on its environment.

In this case, it is gas, heating up and glowing stronger than any star as it collapses onto the black hole, which revealed the presence of the mastodon. It is located 12.9 billion light years from us. So it appears to us in his youth, less than a billion years after the Big Bang.
Impossible to explain

With a mass of 12 billion Sun, this is by far the biggest black hole observed at this early period. It is six times heavier than the largest of his contemporaries. “The formation of a black hole as big, too fast, is difficult to interpret with current theories,” said in a statement one of the authors of the study, Fuyan Bian, of the Australian National University.

A black hole is formed rapidly by the collapse of a star on itself. Then he can grow by swallowing the surrounding material or merging with other black holes. It is nevertheless a lot of time to reach a mass of the order of tens of billions of solar masses, as is the case here. Much more than a billion years according to current models.

To explain this new observation should be a black hole can be formed directly from a large gas cloud collapsing on itself. A hypothesis that remains to be demonstrated.