As reported by local sources:
Early this morning, three bright orbs of light were observed over the Las Vegas strip by several dozen individuals.
"I think it was bloody brilliant if you ask me," said Mr. Dwight Dudley, strip visitor. "I'm from the U.K. and yesterday I was paler than the Tower of London ghost.
"Now look at me: you'd swear I'm from Jamaica with the tan I'm sportin'.
"All in 20 minutes: you can't even buy a tan like that in 20 minutes!"
According to eyewitnesses, the orbs entered the Vegas Valley from the northeast and rapidly approached the center of town.
"They were blooming fast," said Mr. Dudley, "faster than anything I've ever seen in the sky before!
"And then, all of the sudden, they came to a complete stop right above my hotel – it was amazing how suddenly they stopped."
The orbs remained stationary over the Luxor Hotel for nearly 20 minutes, and then disappeared by taking off vertically and vanishing in the desert sky.
Luna White, owner of local bookstore Gaea's Workshop, stated that "it's obvious to me why they are here: they seek to warn us of the dangers of tampering with Mother Nature.
"New age experts have long believed the pyramids of Giza to be a sign of extraterrestrial intelligence.
"This visit obviously proves them right: the aliens have seen our construction and have dubbed us worthy of salvation.
"Now we just have to listen for their messages and heed their warnings on the dangers of genetic tampering and atomic testing.
"I plan on baking a special 'welcome cake' using only organic ingredients which I'm sure they will appreciate once they land on Earth." said Ms. White.
Local ranch owner Bobby Hill has a different opinion: "I recon that's a bunch of hogwash.
"Truth is, they're after me cattle: 'darn aliens are always after me cattle.
"Coyotes, people tell me, what do they know?
"I know the truth when I see it: 'them aliens been stealing me cows for years.
"They just now decided to show their faces I recon." Mr. Hill said.
When asked if this event may be related to any U.S. Air Force Skunk Works project, Col. Dwight Doolittle, Director of Public Affairs for Area 51, had this to say: "I can neither confirm nor deny the presence of alien crafts here this morning: the government denies all knowledge and involvement in this morning's incident.
"F117 Stealth Fighters were scrambled from Nellis Air Force Base to investigate the phenomena, but arrived too late to observe the objects first-hand. Our current suspicions lie with a terrorist cell and its plans to undermine this symbol of American culture and way of life: I would not be surprised if it turns out that they are staging this farce to disrupt the flow of tourism to the area.
"There is no need to panic at this time and the public can rest assured: their tax dollars are hard at work. A full investigation has been launched and the U.S. Government remains confident in our ability to neutralize any treat before it manages to cause harm.
"That is all I am authorized to disclose at this point." concluded Col. Doolittle.
It would appear then that, for now, the mysterious orbs have left more questions than answers with their appearance: we will keep you posted on this story's further developments as they become available.