Meet Matty Roberts of California, the creator of the now-viral Facebook event entitled “Storm Area 51, They Can’t Stop All of Us.” Here, Roberts posed inside the area that will hold an art installation in downtown Las Vegas as part of the retooled official event. Ethan Miller/Getty Images/Getty ImagesA person walked into the Little A’Le’Inn Wednesday in Rachel, Nevada. The small establishment is near ground zero for the retooled “Storm Area 51” event, which was originally created by Roberts as a joke and encouraged people to charge the military base and “see them aliens.”John Locher/Associated Press/Associated PressA larger-than-life alien guarded the entrance to the Alien Research Center in Hiko, Nevada. The weekend’ “Storm Area 51” event might become a cultural marker, a dud, or something in between. John Locher/Associated Press/Associated PressLaw enforcement officials kept a presence in Rachel, Nevada, the small town closest to the Nevada Test and Training Range, which contains Area 51. Lincoln County Sheriff Kerry Lee reported that visitors have been going up to the restricted boundary to take selfies. ‘‘It’s public land,’’ the sheriff said. ‘‘They’re allowed to go to the gate, as long as they don’t cross the boundary.’’ John Locher/Associated Press/Associated PressHundreds of people had already arrived in Rachel, Nevada, as the sun set Thursday evening. John Locher/Associated Press/Associated PressA man in an alien mask posted outside an entrance to the Nevada Test and Training Range near Area 51. Officials say about 150 actually made the trek out to the security gate for selfies. John Locher/Associated Press/Associated PressSheriff's deputies escorted a woman who allegedly ducked under the gate at an entrance to the Nevada Test and Training Range near Area 51, Friday. John Locher/Associated Press/Associated PressA person was briefly detained by police and then released after allegedly ducking under the security gate.Bridget Bennett/AFP/Getty Images/AFP/Getty ImagesA man stood near signs warning against incursion into the Nevada Test and Training Range. The US military had issued stern warnings that lethal force could be used if people entered the site.John Locher/Associated Press/Associated PressA security guard stood just inside the entrance gate as people gathered outside early Friday. John Locher/Associated Press/Associated PressSeveral attendees wore costumes on a visit to an Area 51 security gate. Bridget Bennett/AFP/Getty Images/AFP/Getty ImagesWhile at first glance it may appear extraterrestrials have taken hold of several humans, it turns out the humans themselves were wearing costumes on a visit to the security gate near Area 51. Bridget Bennett/AFP/Getty Images/AFP/Getty ImagesBack in Rachel, Nevada, attendees danced to live music during the Alienstock festival. AFP/Getty ImagesMatty Roberts celebrated as attendees listened to live music at the Downtown Las Vegas Events Center on Thursday. Ethan Miller/Getty Images/Getty ImagesMaterial from the Associated Press was used in this report.