This illustration depicts the Mars Earth Entry System for the Mars Sample Return campaign. The system would contain the orbiting sample inside a disk-shaped vehicle with a heat shield for safe entry through the Earth's atmosphere.

NASA's Mars Sample Return (MSR) will revolutionize our understanding of Mars by returning scientifically-selected samples for study using the most sophisticated instruments around the world. The mission will fulfill a solar system exploration goal as identified by the National Academy of Sciences. This strategic partnership with the European Space Agency (ESA) will be the first mission to return samples from another planet, including the first launch from the surface of another planet. These samples collected by Perseverance during its exploration of an ancient river-delta are thought to be the best opportunity to reveal the early evolution of Mars, including the potential for life.