ELI5. why do scientists always search for radio sygnals in space? Why do they think aliens use that to communicate?

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ELI5. why do scientists always search for radio sygnals in space? Why do they think aliens use that to communicate?

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Anonymous 0 Comments

Radio waves are extremely easy to detect from long distances. In addition, a lot of various high-energy electromagnetic radiation sources (i.e. anything that produces light, visible or not) will end up putting out radiation in the radio spectrum. Thus, if you search in the radio spectrum, you end up seeing *everything* that goes on in the cosmos.

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