SpaceArc is a visionary leap in aerospace engineering, merging India’s legacy of frugal innovation with cutting-edge advancements in rocket propulsion, relativistic physics, and artificial intelligence. At its core is Phoenix, a fully reusable methane-LOX launch system delivering 18,000 kg to low Earth orbit (LEO) at $1,111/kg—over 50% cheaper than SpaceX’s Falcon 9 and 95% below NASA’s SLS. Engineered with graphene composites, AI-guided navigation rooted in Einstein’s field equations, and rigorous CFD/FEA validation, Phoenix exemplifies a new era of low-cost, high-performance rocketry. This 10,000-word paper synthesizes classical rocketry, black hole orbital mechanics, and advanced economic modeling to propose a realistic roadmap for India’s space leadership by 2040, including lunar bases, Mars sample returns, and a 6G satellite constellation. Designed and authored by a 12th-grade Indian student, this work challenges the status quo of billion-dollar launches, proving that with bold ideas, rigorous science, and national vision, space is no longer the privilege of superpowers—it’s the future of all humanity.