Recent NASA press release stated that Maven satellite helps to Map the Electric current around the Mars.
These results helps us to know how mars has lost his atmosphere.
Magnetic fields around the planets place the crucial role on preventing the planets from solar radiations.
Earth molten core creates the magnetic field that extend from north pole to south pole while this magnetic field will observe the charged particle from the sun.
while in Mars there are no Magnetic fields as earth instead mars has induced magnetosphere this has been formed with the help of sun charged particles.
According to latest research the solar wind and induced magnetic field near mars cause the mars to behave as sphere carrying the electric current,these currents leads to disappearance of atmosphere in mars.
for full press release please click on the link(https://www.nasa.gov/press-release/goddard/2020/mars-electric-currents)