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Q&A Can any astronomical phenomenon block/scramble all radio signals from a planet, without making it completely uninhabitable?

Let's assume that a human colony was established on an exoplanet, dozens of light years from another inhabited planet, with the expectation that no one"”not even the colonists' far-future descendan...

4 answers  ·  posted 9y ago by Adam R. Nelson‭  ·  last activity 9y ago by Adam R. Nelson‭

Question astronomy