Aliens could get in touch tomorrow and we must know what to say to them, scientists have warned, as they launched a new research hub to prepare humanity for first contact.
The University of St Andrews has joined forces with the UK SETI (Search for Extraterrestrial Intelligence) Research Network to establish protocols and procedures if aliens are found.
The team warn that although there are measures in place for dealing with threats posed by asteroid impacts, there is no agreed response if a radio signal were picked up from another intelligent lifeform.
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