Powering The Impossible

Modern technologies have helped humans achieve the once impossible – from landing rovers on Mars to exploring the far reaches of interstellar space. For six decades, spacecraft exploring these regions have generated electricity from the heat of plutonium-238’s radioactive decay, a “battery” known as RPS (Radioisotope Power Systems). Radioactive decay is when nuclei eject particles to become stable. The Plutonium decay reaction is: Pu238->U234+He2 (He2=α particle). One mission with actively operating RPS is the Mars Perseverance rover. Unlike solar panels, which are affected by weather and other particle interferences, MMRTG’s (Multi-Mission Radioisotope Thermoelectric Generator, a recent type of RPS) can run in extreme environments. MMRTG’s working principle is: Plutonium decay->heat->thermocouple-> electricity->spacecraft power. Roving in rugged terrains, Perseverance’s endurance inspires me to be resilient throughout my challenges. When I grow up, I want to be an astrophysicist, a pursuit requiring perseverance and passion. Possessing these qualities motivates me to never give up when attempting to understand math/physics concepts, as I enjoy learning about these subjects. This growth mindset gives me the ability to value the journey more, not the destination. Thus, observing such unthinkable enginery helps me recognize my unique potential, powering me to achieve what I thought was impossible.