Frame-dragging is a phenomenon predicted by Albert Einstein's theory of general relativity. It occurs when a massive rotating object, like a black hole or a neutron star, influences the space-time around it. This effect causes nearby objects to be "dragged" along with the rotation of the massive body, altering their paths. This effect can be observed in the movement of satellites around Earth. As Earth spins, it slightly drags the surrounding space-time, which can affect the orbits of satellites. Frame-dragging has been confirmed through experiments, such as the Gravity Probe B mission, which measured the tiny shifts in satellite orbits.