Here's the latest from our planet's smartest human:
Stephen Hawking has also warned that it’s only a matter of time until Earth is destroyed. “Although the chance of disaster to planet Earth in a given year may be quite low, it adds up over time, and becomes a near certainty in the next 1,000 or 10,000 years,” he said in November.
As a result, he has advocated colonizing both the moon and Mars.
Keeping up with his warnings, Hawking warns in a forthcoming documentary - called Stephen Hawking: Expedition New Earth - that humans should make their exodus from the planet within the next century if they have any hope of surviving. According to the BBC, which is releasing the feature this summer, Hawking discusses his assertion that “the human race only has one hundred years before we need to colonize another planet.”
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If there really are "ET aliens" out there, I would be amazed if they allowed the human contagion to escape this planet. The rest of the universe does not need us, and the ETs probably regard us as a failed experiment.