Stephen Hawking issues dire warning: We have less than 600 years until Earth becomes a sizzling fireball

Renowned physicist Stephen Hawking has issued yet another warning for Earth and this time, he says we have less than 600 years before the Earth turns into a sizzling fireball. 

Hawking says that if we don’t leave Earth soon, overpopulation will increase energy consumption and pretty much kill us all. 

SEE ALSO: Stephen Hawking: Robots will replace humans completely

But Hawking has a plan. Speaking at the Tencent WE Summit in Beijing, Hawking appealed to investors to back his plans to travel to Alpha Centauri. At around 4 light-years away, it’s the closest star system to our sun.

The venture is called Breakthrough Starshot and it would use  a tiny spacecraft that travels at the speed of light.

Such a system could reach Mars in less than an hour, or reach Pluto in days, pass Voyager in under a week and reach Alpha Centauri in just over 20 years.”

"Maybe if all goes well, sometime a little after the middle of the century, we'll have our first picture of another planet that may be life-bearing orbiting the nearest star," Pete Worden, the former head at NASA’s AMES Research Center and Starshot Breakthrough director, said at the summit. 

Related: The Earth Is Surrounded By A Man-Made Bubble

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