A ROGUE planet was spotted growing at a mind-bending rate of six billion tonnes a SECOND.

The lost world doesn't have a home star, which means it's drifting through space – and furiously feeding as it goes.

It's called Cha 1107-7626 and it's about five to 10 times the mass of Jupiter.

And it's roughly 620 lightyears away in the constellation of Chamaeleon.

Astronomers say the rate at which it was spotted growing is record-breaking, calling it a "growth spurt".

The free-floating "rogue planet" was detected feeding on gas and dust from its surroundings at "six billion tonnes a second".

"This is the strongest growth rate ever recorded for a rogue planet, or a planet of any kind," the astronomers noted.

The planet is surrounded by a massive disc made up of gas and dust.

And this mate

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