‘Space laser’ is beaming directly at Earth from 5 billion lightyears away


A powerful space laser emitted from a distant galaxy has been discovered by astronomers. The beam of radio waves is what scientists call a “megamaser” and this one is the most distant yet, emerging 5 billion light-years from Earth. It was detected by an international team of scientists using South Africa’s “MeerKAT,” a radio telescope consisting of 64 antennas. Megamasers are naturall...

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