Scientists have developed a new model that shows how the size of early black holes grew billions of times the mass of our sun during the early Universe.

The model shows newly formed black holes at a very early stage of the birth of the Universe. The newly born black holes then moved around and change direction as they're knocked about by newly born stars.

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The black holes zigzag and continually sweep more gas into their orbits, directly pulling the gas so fast the gas can't settle into a slow spiral motion.

The black holes become bigger and spin faster until it becomes filled with 10,000 solar masses, making it weigh a billion solar masses.

Scientists said a black hole forms when a massive star weighing tens of solar masses explodes after it consumes all its nuclear fuel.

Without its nuclear furnace, a star collapses and explodes into a supernova. What remains of the star falls inward and becomes a black hole.

Several processes limit the growth of a black hole such as how gases interact with it. Scientists said gas normally doesn't fall directly into a black hole but is sidetracked in a slow spiral flow.

The black hole will eventually swallow the gas, which then emits light that pushes out against the gas.

The light counterbalances gravity and slows the black hole's feeding process.

Scientists explained that there are black holes billions of times heavier than the sun at the ends of the Universe

Black holes have Quasi-Stellar Radio Sources (Quasars) that feed on interstellar gas, continually swallowing large quantities of it.

Scientists believe their model can answer the connection of quasars to the process that led to a small black hole gorging and flattening out after the Big Bang.

Supermassive black holes billions of times the mass of the sun exist at the center of most galaxies. These indescribably large black holes have existed since the birth of the universe some 800 million years after the Big Bang.