A new radio telescope in China might be able to detect massive swarms of self-replicating alien robots before they attack Earth. 

Dr. Zaza Osmanov, an associate physics professor at the Free University of Tbilisi, recently published a preprint paper that calculates how China’s new Five-hundred-meter Aperture Spherical Radio Telescope (FAST) could be able to detect swarms of hypothetical extraterrestrial devices known as Von Neumann probes. 

These self-replicating devices, first postulated by mathematician John von Neumann, could be used by advanced civilizations to explore the universe. According to Osmanov’s paper — first spotted by Universe Today — FAST could likely detect swarms of these devices due to its radio spectral band. 

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