Millions of millennia ago, in our own Milky Way galaxy, but far upstream of where we are today, two neutron stars spiraled around each other, each embodying the mass of a sun but smaller and faster than a speeding planet. Each of these tiny gigaworlds, millions of times denser than our sun, had been produced, not by a mere exploding star, but by a far more powerful supernova. Each supernova, burning a nuclear fire with a far greater power density than a normal star such as our sun, had besid...
