Two black holes in the middle of a galaxy are gravitationally bound to each other and may be starting to merge, according to a new study. Astronomers came to that conclusion after studying puzzling behavior in what is known as WISE J233237.05-505643.5, a discovery that came from NASA’s Wide-field Infrared Survey Explorer (WISE). Follow-up studies came from … Continue reading "Galaxy May Host ‘Death Spiral’ Of Two Black Holes Becoming One"