Neutrinos from the neighbors


Cosmic Lighthouse: The angular momentum in space-time around a rotating black hole can be tapped and used for extreme light amplification. With this, superintelligences over thousands of light years could draw attention to themselves – or build devastating gravitational bombs.
© Illustration: Science Photo Library/Lynette Cook

Ghost Particles and Gravitational Waves: Are They the Signal Carriers and Clocks of Super Civilizations?


It is no coincidence that the search for extraterrestrial intelligence (SETI) began in the field of electromagnetic radiation. Because even a search for the completely foreign presupposes an ability to visualize what

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