Scientists are searching for "aqueduct" feeding the geysers of Yellowstone National Park

Scientists from the USA and Denmark are searching for natural underground communications inside the earth's crust, feeding hot springs and geysers of Yellowstone National Park, in particular one of the most famous geysers on Earth called "Old Faithful".

Throughout November, the research team intends to fly over the National Park in a helicopter equipped with a special electromagnetic system that acts like an X-ray. With its help, scientists will determine where and how the water flows under the surface.

The team hopes to find out the reason for the powerful eruptions of geothermal springs in the park. One of them happened about 13, 800 years ago and left the world's largest crater with a diameter of about 2 km at the bottom of Lake Yellowstone.

Scientists speculate that the cause of geothermal eruptions may be a sharp drop in pressure in underground reservoirs of boiling water, as a result of which the water instantly turns into steam, which escapes with great force to the surface.

According to the leading expert of the US Geological Survey Carol Finn, no one knows for sure the reason why hot water bursts out of geysers in the National Park. An electromagnetic system developed in Denmark for determining groundwater reserves will help to clarify this problem. The system is able to distinguish rocks from water at depths of up to 1500 meters.