Researchers are looking at strange features on Marshmill's surface Phobos may have found a response in rolling rocks. One of…
Researchers are looking at strange features on Marshmill’s surface Phobos may have found a response in rolling rocks.
One of the most puzzling sights on Phobos is a series of huge cruise lines across its surface that has no clear origin.
But in reality, researchers from Brown University in the United States have revealed new findings suggesting that they could have been formed by rolling rock blocks moving across its surface. Even more fascinating is the fact that they are probably blasted out of an old asteroid effect.
Publish their findings to Planetary and Space Science The research group used computer models to simulate the movement of junk from a huge gash on one end of the moon’s elongated body called the Stickney crater.
“These traces are a distinctive feature of Phobos, and how they were formed have been discussed by planet scientists for 40 years,” said Ken Ramsley, a planet science researcher at Brown University who led the work. “We think this study is another step towards nullifying an explanation.”
The trails were not discovered in the 1
970s by NASA’s spacecraft Mariner and Viking, and not far behind planet scientists Lionel Wilson and Jim Head suggested the idea that rolling rock blocks from Stickney Crater caused the formations. With the crater measuring 9km above, the effect that formed it would have been decoupled giant rocks, which makes the idea likely.
But at this point, this theory was not solid because there are a number of tracks crossing each other and even some in the crater itself. Adding even more mystery, there is a noticeable deadlock on the moon where no rolling stone block has ever crossed.
Ramsley wanted to test the theory at least by computer simulations and admitted that he and his team put in all the basic ingredients and then it was just a case to press a button and see what happened. “
The results showed that the pebbles tended to align in sets of parallel roads, and because Phobos are small and have a low gravity, they continue to roll rather than stop after a mile or as if they might be on a bigger body. The fact is that some blocks of stone would have rolled and delimited all the way around the little moon and explain why some are not radially aligned with the center.
As for the dead point, there is a fairly low surface on Phobos surrounded by a higher height. “It’s like a jump,” said Ramsley. “Boulders continue but suddenly there is no field below them. They stop making this suborbital flight over this zone. “