How to Signal Aliens

The video explores three methods for signaling aliens: radio transmissions, laser pulses, and the transit method. Radio transmissions require significant resources and are costly. Laser pulses are detectable but limited by interstellar dust. The transit method involves creating artificial objects to mimic planetary transits, offering a long-lasting signal without continuous transmission. Each method has its pros and cons, and the video concludes with considerations for future research and the potential for aliens to use similar methods.

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