NASA's Perseverance Rover is equipped with the most advanced science lab ever brought to another planet, so it will be able to thoroughly analyze any rocks and soil that it digs up. However, NASA also has something even more ambitious in mind: bringing Perseverance samples back to Earth via the Mars Sample Return mission. Now, the space agency has taken a big step in that mission, awarding the Mars Ascent Propulsion System (MAPS) contract to...