In 1849, James Marshall discovered gold at Sutter’s Mill, sparking a surge of gold-seekers in California and the rise of massive industries in rail and shipping. But today, innovative entrepreneurs aren’t looking to the West for the next “Gold Rush,” but to the sky. A host of voices in fields as diverse as finance to astrophysics have predicted that Earth’s first trillionaires will be minted in space through asteroid mining, 3D printing, and satellite servicing. When will the generation of 2049-ers take to the stars, and how will the Space Rush change our world and our lives?