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Astronomers baffled by 'mysterious disruptor' with a mass of 1 million suns and a black hole for a heart
The gravitational lens JVAS B1938+666 consists of massive bodies ranging from 6.5 billion to 11 billion light-years away, ...
"We found something never seen before and, more importantly, entirely unexpected," team leader Simone Scaringi of Durham ...
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