"NASA’s two ESCAPADE (Escape and Plasma Acceleration and Dynamics Explorers) spacecraft have each successfully completed a powered Earth flyby, using Earth’s gravity in combination with a sustained engine burn to slingshot themselves toward Mars."
https://science.nasa.gov/science-research/heliophysics/nasas-escapade-completes-powered-earth-flybys-now-en-route-to-mars/?utm_source=join1440&utm_medium=email&utm_placement=newsletter&user_id=66c4c92f5d78644b3ac5d5b4