Once humans land on the surface of Mars, they must stay there for more than a year, while the planets move into a position that will minimize the length of their trip home.
This allows the astronauts plenty of time to conduct experiments and explore the surrounding area, but they won’t want to be limited to how far they can go on foot. Astronauts will have to use robust, reliable and versatile rovers to travel farther.
Electric cars may still play second fiddle to gas-guzzlers here on Earth, but they’ve dominated the Martian driving scene for more than a decade.
The next generation of NASA astronauts need to train in all new ways for the challenges of exploring a planet we’ve never stepped foot on.