Caves made by Volcanoes and Meteors

Meteor impacts and volcanoes have been thought to make caves under the surface of Mars. Orbiting spacecrafts have located lava tubes, like those near Earth's volcanoes. And with meteor impacts that melted the ice, caves may form around the impact zone. The caves offer protection for potential Martain Life by filtering soflar and cosmic radiation on the Martian surface. Cave researchers from New Mexico Institue of Technology say that evidence of life may be found near or in these caves.