Though inevitable, the demise of Phobos is not imminent.Only one other moon in the Solar System, Neptune’s largest moon, Triton, is known to be moving closer to its planet. Dismembering it is analogous to pulling apart a granola bar, Black said, scattering crumbs and chunks everywhere. Black and Mittal, both in UC Berkeley’s department of earth and planetary science, were drawn to the question of what might happen to Phobos because its fate is expected to be so different from that of most other moons in our Solar System.
Mars’ largest mooon, Phobos, is slowly falling towards the planet and is likely to be shredded into pieces that will be strewn about the red planet in a ring like those encircling Saturn and Jupiter, scientists, including one Indian-origin, say.UC Berkeley postdoctoral fellow Benjamin Black and graduate student Tushar Mittal estimate the cohesiveness of Phobos and conclude that it is insufficient to resist the tidal forces that will pull it apart when it gets closer to Mars.
While our moon is moving away from Earth at a few centimetres per year, Phobos is moving towards Mars at a few centimetres per year, so it is almost inevitable that it will either crash into Mars or break apart,” Black said. This is because Phobos is highly fractured, with lots of pores and rubble. Mars is blanketed by a thin, mostly carbon dioxide atmosphere that is too thin to keep water from freezing or quickly evaporating. Studying such moons is relevant to conditions in our early Solar System, Mittal said, when it is likely there were many more moons around the planets that have since disintegrated into rings, the suspected origins of the rings of the outer planets. Meanwhile, scientists have found that ultraviolet (https://www.jinduhardware.com/product/hex-nut/din934-hex-nut.html) rays from Sun caused Mars to lose its atmospheric carbon dioxide, solving the long standing mystery of the “missing” carbon on the red planet. The resulting rubble from Phobos — rocks of various sizes and a lot of dust — would continue to orbit Mars and quickly distribute themselves around the planet in a ring. It will probably happen in 20 to 40 million years, leaving a ring that will persist for anywhere from one million to 100 million years, according to scientists at the University of California, Berkeley. Only Mars’ other moon, Deimos, would remain.
Just as Earth’s moon pulls on our planet in different directions, raising tides in the oceans, for example, so too Mars tugs differently on different parts of Phobos. While the largest chunks would eventually spiral into the planet and collide at a grazing angle to produce egg-shaped craters, the majority of the debris would circle the planet for millions of years until these pieces, too, drop onto the planet in ‘moon’ showers, like meteor showers.Mars’ largest mooon, Phobos, is slowly falling towards the planet and is likely to be shredded into pieces that will be strewn about the red planet in a ring like those encircling Saturn and Jupiter, hex nuts Manufacturers Mars. As Phobos gets closer to the planet, the tugs are enough to actually pull the moon apart, the scientists say
Mars’ largest mooon, Phobos, is slowly falling towards the planet and is likely to be shredded into pieces that will be strewn about the red planet in a ring like those encircling Saturn and Jupiter, scientists, including one Indian-origin, say.UC Berkeley postdoctoral fellow Benjamin Black and graduate student Tushar Mittal estimate the cohesiveness of Phobos and conclude that it is insufficient to resist the tidal forces that will pull it apart when it gets closer to Mars.
While our moon is moving away from Earth at a few centimetres per year, Phobos is moving towards Mars at a few centimetres per year, so it is almost inevitable that it will either crash into Mars or break apart,” Black said. This is because Phobos is highly fractured, with lots of pores and rubble. Mars is blanketed by a thin, mostly carbon dioxide atmosphere that is too thin to keep water from freezing or quickly evaporating. Studying such moons is relevant to conditions in our early Solar System, Mittal said, when it is likely there were many more moons around the planets that have since disintegrated into rings, the suspected origins of the rings of the outer planets. Meanwhile, scientists have found that ultraviolet (https://www.jinduhardware.com/product/hex-nut/din934-hex-nut.html) rays from Sun caused Mars to lose its atmospheric carbon dioxide, solving the long standing mystery of the “missing” carbon on the red planet. The resulting rubble from Phobos — rocks of various sizes and a lot of dust — would continue to orbit Mars and quickly distribute themselves around the planet in a ring. It will probably happen in 20 to 40 million years, leaving a ring that will persist for anywhere from one million to 100 million years, according to scientists at the University of California, Berkeley. Only Mars’ other moon, Deimos, would remain.
Just as Earth’s moon pulls on our planet in different directions, raising tides in the oceans, for example, so too Mars tugs differently on different parts of Phobos. While the largest chunks would eventually spiral into the planet and collide at a grazing angle to produce egg-shaped craters, the majority of the debris would circle the planet for millions of years until these pieces, too, drop onto the planet in ‘moon’ showers, like meteor showers.Mars’ largest mooon, Phobos, is slowly falling towards the planet and is likely to be shredded into pieces that will be strewn about the red planet in a ring like those encircling Saturn and Jupiter, hex nuts Manufacturers Mars. As Phobos gets closer to the planet, the tugs are enough to actually pull the moon apart, the scientists say
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