NASA Tests Robotic Helicopter that Would Act as Mars Scout

The robotic rovers driving across the surface of Mars are limited by what their onboard cameras can see.
If they could see further ahead, they might be able to travel three times as far in a single Martian day, enabling them to better find sites to explore and gather more information, faster, than they can today.
To speed up the rovers’ work, NASA is considering sending a robotic helicopter to Mars that could act as a scout for their explorations.
“So why would we want to put a helicopte