i have watched inside.planet.earth.2009.avi Applying the film, If the core of the planet cools, the planet is dying, because it disappears EM field that protects the planet. On Mars there is a huge volcano(According to scientists, the largest in the solar system.) which was derived its strength, possibly(?) directly from the core. If the volcano erupted long enough, it could cool the core, strong enough to cause the death of Mars, turning off it EM field? How this volcano has arisen?