Cavities known as lava tubes are created when a volcano erupts. Hot molten rock flows beneath the surface of a river of lava, cooling and solidifying beneath it.
Scientists intend to drill two boreholes into a liquid rock reservoir in Iceland.
One might significantly increase geothermal power, while the other will provide our first direct observations of magma.
Among the world's most dull nations is Iceland. That's meant to be a complement rather than a slight.
Thousands of boreholes that have been bored deep into the rock to harvest geothermal energy are sprinkled throughout the island nation.