American researchers announced the discovery of the most massive black holes ever detected

American researchers announced the discovery of the most massive black holes ever detected, with a mass, each representing ten billion times the Sun.The work of this team from the University of California at Berkeley (western U.S.), is published Monday by the journal Nature. The researchers said the discovery of these two giant black holes in galaxy clusters 300 million light years away.

A light year is the distance traveled by light in the vacuum of space for 365 days to about 300,000 km / s, or about 9,460 billion km a year. The biggest black hole discovered so far had a mass representing the six suns.

A black hole forms when a supergiant star explodes at the end of life and then collapses on itself. This creates a point in space where nothing can escape the gravitational pull, not even light. Black holes are not directly observable, but can be detected by the effect they cause on nearby stars, whose material is literally sucked. It heats up to temperatures with significant emission of large quantities of gas and X-ray

According to the researchers, their work suggests that the growth process of black holes are different depending on the size of galaxies