Abstract The imminent 2025 perihelion of interstellar object 3I/ATLAS provides a unique opportunity to model unconventional cosmic threats. This paper explores the hypothetical scenario of this object being a sophisticated weaponized probe—a "Supernova Bomb"—designed to induce a catastrophic solar destabilization event. We present the theoretical physics, energy requirements, and system-wide consequences of such an event. The analysis indicates that an energy release of approximately 2.28×1041 joules, delivered directly to the Sun's core, would be required to overcome its gravitational binding energy. The resultant energy wave would vaporize all inner solar system planets and Pluto, while catastrophically scouring the atmospheres of the gas giants and ejecting all bodies from their orbits. Such an event would be observable from other galaxies as a luminous optical transient. We conclude that while this scenario is speculative, it serves as a crucial thought experiment for evaluating high-consequence existential risks and underscores the necessity of a paradigm shift towards planetary defense and cosmic awareness.