summary - Images made with the continent-wide Very Long Baseline Array detect the orbital motion of two supermassive black holes as they circle each other at the center of a distant galaxy. The two black holes themselves may eventually merge in an event that would produce gravitational waves that ripple across the universe.
Wednesday, June 28, 2017
Visual Binary
Science Daily: Astronomers detect orbital motion in pair of supermassive black holes - VLBA reveals first-ever black-hole 'visual binary'
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