A
alek_a
Guest
The story at link contains the following:<br /><br /><font color="yellow">... That could happen if, as scientists believe, Mars changed its spinning axis and the equatorial regions tilted away from the sun. That <b>has happened on Earth</b>, said Arvidson -- notably during the ice ages when glaciers crept down from the poles. ...</font><br /><br />I though that the magnetic poles can wonder, but the spinning axis?? What can possibly cause that?