UC3M | Can light really push satellites?

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Get ready for a fascinating experiment: we're going to move objects using only light. As incredible as it sounds, light can exert a real force, known as radiation pressure. This phenomenon, though subtle, holds great potential. During the experiment, we’ll explain the theory behind it and how even a massless particle like the photon can transfer momentum when it interacts with matter. We'll observe how this tiny force can accumulate and produce visible effects. Beyond the lab, this concept has revolutionary applications, such as solar sails—a technology that allows satellites and space probes to be propelled using sunlight alone, without any fuel. Join us anddiscover how a simple beam of light can become a powerful tool for space exploration.