We’re pleased to reprint Ken Liu’s short story “Seven Birthdays” from Bridging Infinity, the latest volume in the Hugo award-winning Infinity Project series, showcasing all-original hard science fiction stories from the leading voices in genre fiction. Sense of wonder is the lifeblood of science fiction. When we encounter something on a truly staggering scale—metal spheres wrapped around stars, planets rebuilt and repurposed, landscapes transformed, starships bigger than worlds—we react viscerally. Fear, reverence, admiration – how else are we to react to something so grand? Edited by Jonathan Strahan, Bridging Infinity puts humanity at the heart of these vast undertakings—as builder, as engineer, as adventurer—reimagining and rebuilding the world, the solar system, and even the entire universe.