The Mars 2020 rover will be equipped with a helicopter, as seen in this artist’s concept, that will fly above the Red Planet’s surface like no craft before it. (NASA/JPL)

Just under a year before launch, NASA’s unnamed Mars 2020 rover is getting ready for its big mission with the new addition of the Mars Helicopter Scout.

The Helicopter Scout will be the first rotorcraft to fly on another planet. And though the mission is considered high-risk, it could also come with a high reward. If the