Naoki Seto

Imagine you and your friends are in a dark room. You agree that after a common flash, each of you will turn on a flashlight ten seconds later, but with a correction for the light delay — since the light from the flash reaches each of you with a slight lag.

Two dead suns circle in an eternal dance. Their orbit is a perfect metronome, keeping time with the accuracy of atomic clocks. But even dead stars can tremble.