Detailed Instructions: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Problem:The city where Anakin Skywalker grew up is set to be destroyed by a giant, Pacman-shaped sand dune that is working its way across the Tunisian desert. 
  
 Scientists from the Space Department of a US university warned the public not to underestimate the power of the force involved in moving the huge crescent of sand, known as a “barchan”, which is expected to devastate the city of Mos Espa, featured in Star Wars Episode I: The Phantom Menace. 
  
 The film set is a major tourist site in Tunisia, with thousands of fans making the pilgrimage each year via the nearby oasis town of Tozeur to see the childhood home of the future Darth Vader. 
  
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 Scientists have been observing the fate of the city from space for some time, using it as a reference point in order to be able to compare the speed of sand dune migration on Earth to that of Mars, and Saturn’s largest moon Titan. 
  
 The barchan is estimated to be moving at a rate of 15 metres a year, some 10 times faster than those on Mars, and tourism photos from this year - featured as an example of “geomorphologically-useful citizen science” – indicate that the front edge has already reached the first buildings on the outskirts of Mos Espa. 
  
 The first author of the report, Dr Ralph Lorenz from John Hopkins University in the US, wrote in a guest article for the Planetary Society: “In 2009, a large barchan dune loomed just east of the site. But even only a few years ago, this dune was nowhere near!” 
  
 Dr Lorenz compared the fate of Mos Espa to that of a nearby set used in Star Wars Episode IV: A New Hope, which was overcome by sand in 2003. 
  
 The astrophysics expert, who has previously compared the moment Titan moved into view of a giant telescope to a scene in Episode IV where a planet drifts into the sights of the Death Star, said: “Reality can sometimes be more amazing than science fiction.” 
  
 While dune migration can be difficult to predict, Dr Lorenz estimated that nothing short of an heroic intervention could save Mos Espa, once home to Anakin, his slave owner Watto, and rival pod-racer Sebulba. 
  
 He said: “Even if the threatening barchan fizzles out as it meets the set, a larger, slower-moving barchan is lumbering behind it. Watch this space!” 
  
 For obvious reasons settlements are not normally built amongst the volatile dunes, and so government intervention to stop the sands of time is rare. 
  
 But the scientists’ report indicated an exception could be made here. It said: “Given the importance of this site to the tourism industry of Tunisia, it may be that it is a candidate for mitigation measures, not being pursued at present. 
  
 “These could include erecting fences or walls, bulldozing the approaching dune (which would take considerable effort and would have to be repeated with each oncoming dune), or moving the site out of the path of the dunes.” 
  
 The destruction of home planets and towns was something of a running theme throughout the Star Wars saga. Fans around the world will be hoping the same fate does not befall the real life Mos Espa. ||||| Sand dunes migrating over the Tunisian desert are poised to bury a famous Star Wars film set. 
  
 The buildings of the fictional city Mos Espa featured in The Phantom Menace, "Episode I" of the Jedi saga. 
  
 Sited on the planet Tatooine, this was the home of the young Anakin Skywalker, later to become Darth Vader. 
  
 Scientists have used the dwellings as a fixed geographic reference to measure the migration of giant wind-blown crescent-shaped dunes, or barchans. 
  
 They have published details in the journal Geomorphology. 
  
 Homes are rarely built in dune fields, and this study illustrates why. It shows dune movements on Earth are 10 times faster than barchans on Mars. 
  
 Wind-blown sand can build huge mounds in arid deserts, with sand grains pushed up the shallow rear slope before falling down the steep front slope in the lee of the wind. With steady prevailing winds, the dune shape reflects the wind direction and can develop crescent "wings" pointing downwind. 
  
 Individual crescent-shaped barchans are seen on other planets as well as on Earth, and have been imaged on the surface of Mars as well as on Titan, the largest moon of Saturn. 
  
 Image caption Crescent-shaped dunes glide across the face of many planets, from Mars to Tatooine 
  
 Ralph Lorenz, from Johns Hopkins University, US, together with Jason Barnes, from the University of Idaho, Jani Radebaugh from Brigham-Young University (BYU) and Nabil Gasmi, of the University of Sousse, Tunisia, visited the Mos Espa site in 2009, and noted that part of a nearby set used in Star Wars Episode IV: A New Hope had already been overrun. 
  
 Using satellite images of the site, they were able to determine the speed of dune movement, which is approaching the buildings once inhabited by such luminaries as Anakin, his slave owner Watto, and rival podracer Sebulba. 
  
 Moving at around 15m a year, the front edge of the barchan appears to have made contact with some of the Mos Espa buildings earlier this year, and is encroaching on Qui-Gon's Alley. 
  
 The barchan will probably continue on its journey past the city site, which in due course will re-emerge from the sand, but it is anticipated that it will not remain unscathed. |||||
Solution:
Poor Anakin Skywalker: First he turns into Darth Vader, and now his childhood home is about to be eaten by a wind-blown sand dune. The Tunisia set for the Tatooine city of Mos Espa in Star Wars Episode I: The Phantom Menace is expected to soon be buried by the oncoming dune, say scientists, whose observation is more than just a bit of Hollywood trivia. They've actually used the set as a stationary reference point in their study of barchans, or crescent-shaped dunes, the BBC reports. Satellite images have shown the US- and Tunisia-based scientists that this particular barchan is chugging along at a rate of about 50 feet per year. Per tourism photos taken this year, it looks to be already touching the edge of the set, which wouldn't be the first to suffer such a fate: A neighboring site that featured in Star Wars Episode IV was blanketed in sand in 2003, the Independent notes. The good news for Star Wars fans: "Given the importance of this site to the tourism industry of Tunisia, it may be that it is a candidate for mitigation measures [like constructing fences], not being pursued at present," the scientists say. And if nothing is done to stop it, the dune should keep going after it covers the city, bringing Mos Espa once again to light—though probably with some damage. (Click for another tale of desert woe.)