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Is humanity prepared for contact with intelligent aliens?
Potential cultural impact of extraterrestrial contact - Wikipedia
First contact with aliens could easily end in genocide, scholars warn
The missing plan for alien first contact - BBC
Here's how aliens will actually make first contact with humanity
How to talk to extraterrestrials — Harvard Gazette
Are we alone in the universe? 4 essential reads on potential contact ...
Alien language: If we met extraterrestrials, could we talk to them? - BBC
Researchers Made a New Message for Extraterrestrials