دانلود کتاب راهنمای فضانوردان برای زندگی روی زمین – آنچه رفتن به فضا آموخت

THE WINDOWS OF A SPACESHIP casually frame miracles. Every 92 minutes, another sunrise: a layer cake that starts with orange, then a thick wedge of blue, then the richest, darkest icing decorated with stars. The secret patterns of our planet are revealed: mountains bump up rudely from orderly plains, forests are green gashes edged with snow, rivers glint in the sunlight, twisting and turning like silvery worms. Continents splay themselves out whole, surrounded by islands sprinkled across the sea like delicate shards of shattered eggshells. Floating in the airlock before my 􀉹rst spacewalk, I knew I was on the verge of even rarer beauty. To drift outside, fully immersed in the spectacle of the universe while holding onto a spaceship orbiting Earth at 17,500 miles per hour—it was a moment I’d been dreaming of and working toward most of my life. But poised on the edge of the sublime, I faced a somewhat ridiculous dilemma: How best to get out there? The hatch was small and circular, but with all my tools strapped to my chest and a huge pack of oxygen tanks and electronics strapped onto my back, I was square. Square astronaut, round hole. The cinematic moment I’d envisioned when I 􀉹rst became an astronaut, the one where the soundtrack swelled while I elegantly pushed o􀊃 into the jet-black ink of in􀉹nite space, would not be happening. Instead, I’d have to wiggle out awkwardly and patiently, focused less on the magical than the mundane: trying to avoid snagging my spacesuit or getting snarled in my tether and presenting myself to the universe trussed up like a roped calf. Gingerly, I pushed myself out head􀉹rst to see the world in a way only a few dozen humans have, wearing a sturdy jetpack with its own thrusting system and joystick so that if all else failed, I could 􀉹re my thrusters, powered by a pressurized tank of nitrogen, and steer back to safety. A pinnacle of experience, an unexpected path. Square astronaut, round hole. It’s the story of my life, really: trying to 􀉹gure out how to get where I want to go when just getting out the door seems impossible. On paper, my career trajectory looks preordained: engineer, 􀉹ghter pilot, test pilot, astronaut. Typical path for someone in this line of work, straight as a ruler. But that’s not how it really was. There were hairpin curves and dead ends all the way along. I wasn’t destined to be an astronaut. I had to turn myself into one.