Medicine & TechnologyAstronomers have discovered a mysterious hole on the surface of Mars, and they still have no idea what lies inside it. Find out more about it in this article.
Eruption of ancient volcanoes could produce lava flow which, after cooling and hardening, produces underground caves known as lava tubes. Read the article to learn more about these formations.
Astronauts train to explore lava tubes or underground caves, on the Red Planet and on the Moon. New data can give insight into former volcanic activity and reveal signs of life.
The volcanic roots of Oregon's Mount Hood National Forest become evident each year when the mysterious Lost Lake vanishes. Near the Hoodoo Ski Area, the water of Lost Lake escapes through a hole on the north shore like water down a drain.
Lava tubes that are large enough to contain entire cities are now believed to exist on the moon, and scientists believe that they could one day provide shelter from the cosmic radiation associated with space exploration.