Aliens may exist but mankind should avoid contact with them as the consequences could be devastating, British scientistStephen Hawking warned Sunday.
"If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans," said the astrophysicist in a new television series, according to British media reports.
The programmes depict an imagined universe featuring alien life forms in huge spaceships on the hunt for resources after draining their own planet dry. [Read more...]
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