Two Supermassive Black Holes on Track to Collide Will Warp Space and Time

 

Some 9 billion light-years away in the universe, two gargantuan black holes are revolving around one another — and rather ominously. This is a dance that won’t last forever. Around 10,000 years from now, the pair will collide. They’ll merge into a single deafening abyss with a force immense enough to warp the fabric of space and time with an eruption of ripples.