XMM-Newton observes black hole that exhibits strange oscillations
NASASpaceflight.com   20 hours ago
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XMM-Newton observes black hole that exhibits strange oscillations  NASASpaceflight.comA supermassive black hole is sending out a mysterious pulsing beat  New ScientistThis Supermassive Black Hole May Harbor a Death-Defying White Dwarf  Scientific...