Fluid-rock interactions on ancient Mars may have produced abundant magnetic minerals that preserved unusually intense records ...

As Mars' atmosphere was stripped off by solar winds, possibly because the planet has a weak magnetic field, it cooled and dried. This climatic shift is one of the most important reasons Mars no ...

Mars' magnetic field may have survived 200 million years longer ... it looks like the magnetic field is weak or non-existent. If Steele's team is correct, then the global magnetic field on Mars ...