Death's End (Remembrance of Earth’s Past, #3)

by Liu Cixin

When they were about a hundred meters from the death lines, Yifan waved Cheng Xin to a stop. Each death line was about twenty or thirty meters in diameter, and from here, they resembled death columns. “These are probably the darkest things in the universe,” Cheng Xin said. The death lines showed no details except an exceptional blackness showing the boundaries of the zero-lightspeed region, with no real surface. Looking up, the lines showed up clearly even against the dark backdrop of space. “These are the deadest things in the universe as well,” said Guan Yifan. “Zero-lightspeed means absolute, one hundred percent death. Inside it, every fundamental particle, every quark is dead. There is no vibration. Even without a source of gravity inside, each death line is a black hole. A zero-gravity black hole. Anything that falls in cannot reemerge.” Yifan picked up a rock and tossed it toward one of the death lines. The rock disappeared inside the absolute darkness. “Can your lightspeed ships produce death lines?” Cheng Xin asked. “Far from it.” “So you’ve seen these before, then?” “Yes, but only rarely.”