What if aliens are deliberately keeping quiet for fear that they might be destroyed? In 1974 we sent the Arecibo radio message towards Messier 13. The message was mostly symbolic; we weren’t really ...
We have no good reason to believe that aliens have ever contacted Earth. Sure, there are conspiracy theories, and some rather strange reports about harm to cattle, but nothing credible. Physicist ...
(via PBS Space Time) In 1974 we sent the Arecibo radio message towards Messier 13, a globular cluster near the edge of the Milky Way, made up of a few hundred thousand stars. The message was mostly ...
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