Data collected from space probes that have recently examined the Silver Globe show that they can be even tens of kilometers wide. Researchers at Purdue University announced the sensational ones after making meticulous calculations, from which we learn that a cave over 1 kilometer wide would be very stable. So they must be very common there.
On the other hand, if the lava-carved tunnels have arches similar to those found in terrestrial caves, they can be stable up to 5 kilometers wide. Of course, there may be such ones up to 20 kilometers wide, because there are conditions for this.
Interestingly, this would not be possible on Earth, but on the Moon we have a much weaker gravity, and lunar rocks are not subject to as much weather and erosion as terrestrial ones. Scientists believe that the caves were formed in valleys that were filled with lava when volcanic activity was high on the Silver Globe. And its scale may be shown by the fact that the valleys covered as much as 17 percent of the Moon’s surface.
Their attribute is the fact that they can naturally protect future colonizers against the deadly radiation coming from our day star and temperature fluctuations from minus 190 degrees to plus 150 degrees Celsius.
Two years ago, the European Space Agency initiated a very interesting project. It assumes three plans to explore such places. First, discover them, then enter the holes, and then explore them with the help of special robots. They will be equipped with a system of cameras and LiDAR, thanks to which they will be able to accurately map their depths in 3D.
Currently, scientists from the University of Würzburg are working on a probe called Daedalus, which will be lowered into a selected cave. Meanwhile, engineers at the University of Oviedo are building several jumping robots. They are to efficiently overcome obstacles and facilitate communication of the fleet of machines with the Earth. ESA is also working on a supply lander. It is set to take part in the US Silver Globe Return Program by 2024.
Source: GeekWeek.pl/ESA / Photo. ESA / NASA / Boston Dynamics
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