Buzz
The Al Naslaa rock formation in Saudi Arabia features a split so flawlessly straight that it sparks debates about whether such a precise cut could be natural. Wikimedia Commons (CC By SA 4.0)Numerous theories surround the creation of the Al Naslaa rock formation, yet its true origin is likely to stay an enigma.
Found in Saudi Arabia's Tayma Oasis — home to the oldest human settlement in the country — Al Naslaa consists of twin sandstone rocks perched on natural pedestals, separated by a razor-sharp gap that appears as if sliced by a laser.
The exact cause of the 4,000-year-old geological formation's precise split remains a mystery, but the twin boulders — each standing 20 feet (6 meters) tall — also feature ancient petroglyphs dating back millennia. Among the most striking carvings is a depiction of a person guiding a horse resembling an Arabian, one of the world's oldest horse breeds, whose origins trace back to Saudi Arabia in the seventh century, predating the human-carved Al Naslaa.
Ancient Gods, Aliens, Lasers, or Simply Water?
These impeccably balanced boulders have inspired countless origin theories, with some attributing the phenomenon to extraterrestrial beings. Social media platforms, including the Facebook page of news aggregator Acerca del Mundo, have speculated whether the precise split could be the work of aliens wielding advanced technology.
"Some argue that this is the handiwork of ancient deities or extraterrestrials. Given the formation's laser-like precision, some suggest that an alien visitor descended upon the Tayma Oasis and cleaved the rock using technology far beyond human capability at the time," Acerca del Mundo shared.
Another theory suggests the rock lies on a fault line, with the split resulting from a shift in tectonic plates that exploited a weak spot in the formation.
Another hypothesis suggests that a "joint" within the rock may have caused the split. Joints are natural fractures in rocks, such as sandstone, that erode over time and separate larger formations. Sandstone formations like Al Naslaa often display vertical separations due to these joints.
A third theory attributes the Al Naslaa formation to a freeze-thaw weather cycle. If water infiltrated the rock when it was whole, froze and expanded, then thawed, it could have created a crack that eventually split the boulder.
Some propose that ancient humans might be behind the remarkable split. Evidence of carvings on the rock suggests that an ancient civilization could have used tools to divide it, possibly as a form of artistic expression.
Regardless of the split's origin, the smooth edges were likely once rough and jagged, gradually polished over millennia by wind-blown sand. Nature, it seems, is the ultimate sculptor.
The delicate pedestals supporting the Al Naslaa boulders weren't always so fragile. Over time, these "mushroom rocks" were eroded by natural elements. Commonly found in semi-arid regions, such pedestals form when wind-blown sand gradually wears down the rock formations.
