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About 1.5 billion light-years from Earth, a galaxy called PKS 2155-304 is giving astronomers more questions than answers. After studying nearly two decades of observations, researchers have found that this unusual object is far more complicated than standard theories suggest. PKS 2155-304 is a blazar, a special type of active galaxy powered by a supermassive […]
The post A Blazar 1.5 Billion Light-Years Away Is Challenging What Astronomers Thought They Knew appeared first on Knowridge Science Report.
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