A massive white dwarf and a sun-like "blue lurker" star tell a remarkable story of what was once a triple-star system in the ...
Paris Saint-Germain have completed the signing of Khvicha Kvaratskhelia from Napoli in a deal worth in excess of $72 million.
Strange x-ray pulses hint at a surprisingly long-lived white dwarf orbiting precariously close to a supermassive black hole ...
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