Answer:
Without a global magnetic field surrounding Mars, the currents induced in the solar wind can form a direct electrical connection to the Martian upper atmosphere.
Step-by-step explanation:
With a single elegant operation, the strength and paths of the currents pop out of this map of the magnetic field,” Ramstad said. Without a global magnetic field surrounding Mars, the currents induced in the solar wind can form a direct electrical connection to the Martian upper atmosphere.