SpaceMars may have a solid inner core like Earth does A new analysis of marsquakes measured by NASA’s InSight lander indicates Mars has a solid inner core – but other researchers say the evidence is thin News
EarthDried-up lake may explain why California is 'overdue' major earthquake Pressure on the San Andreas fault from a now-dried lake could have been sufficient to trigger past major earthquakes in California. The lake’s disappearance could explain why there have been no such quakes for nearly 300 years News