From deep space comes a mysterious laser beam - Wire Service Canada

A powerful radio-wavelength laser light has been detected from deep space, at the longest distance ever detected. It's a type of massless cosmic object

A powerful radio-wavelength laser light has been detected from deep space, at the longest distance ever detected. It’s a type of massless cosmic object called a megamaser, and its light traveled 5 bi… [+3400 chars]

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