Encontram-se em destaque cinco termos ou expressões. Assinale a alternativa correspondente ao termo cujo emprego está incorreto.

As observed in the uniqueorbits of cosmic dust particles, at small length scales, environmental forces such as solar pressure and the Loretz force can compete with gravity sosignificantly accelerate a body in space. Wepropose to employ recent advances in nanofabrication to create a new category of extremely small, low-cost, expendable spacecraft which capitalize on this scalingto enable propellantless propulsion. Such devices could open up new spacecraft mission opportunities, including distributed sensing, scientific research, exploration, and in-orbitinspection of larger satellites.