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After decades of mystery, scientists explain how stones moved across the desert, leaving trails without human or animal interaction.
After more than seventy years of mystery, scientists have finally caught the famous sailing stones of Racetrack Playa in Death Valley National Park as they move. What scientists found is surprisingly simple.
These rocks, some weighing over 300 kilograms, have long left visible trails across the dry lakebed. Their paths can run side by side, with matching turns and even sudden changes in direction, which made the whole thing even harder to explain.
No one had actually seen them move before. Research led by Dr. Brian Jackson of Boise State University points to the rarity of the right conditions and the extremely slow pace as key reasons the phenomenon went unobserved for so long.
Findings published in PLOS ONE describe how this setup allowed scientists to capture real-time data during a rare period when the playa filled with water. As Dr. Richard Norris from the Scripps Institution of Oceanography put it:
Over roughly two and a half months, researchers documented five movement events, some involving hundreds of stones moving simultaneously.
This dataset finally linked specific weather patterns to stone movement. It also showed how short and irregular these events are, which helps explain why they were never directly observed before.
Work by Dr. Norris shows that these panels are pushed by light winds of only 3 to 5 meters per second, which in turn move the stones across the soft mud. The ice does not lift the rocks. It transfers force as it drifts across the surface. The observations show that even gentle winds can move massive stones when combined with the right surface conditions.
Some movements last just a few seconds, while others go on for up to 16 minutes. In one case, stones spread across the distance of three football fields started moving at the same time and traveled more than 60 meters.
Researchers noted that this kind of synchronized motion explains the parallel tracks seen across the Racetrack Playa. When it happens, it is subtle and quiet. You could easily be there and not realize anything is moving at all.
Source:
https://dailygalaxy.com/2026/05/moving-300kg-stones-explained/
Other related post in the forum, the video in one reference was not found
https://www.treasurenet.com/search/4428469/?q=Racetrack+Playa&o=relevance
After more than seventy years of mystery, scientists have finally caught the famous sailing stones of Racetrack Playa in Death Valley National Park as they move. What scientists found is surprisingly simple.
These rocks, some weighing over 300 kilograms, have long left visible trails across the dry lakebed. Their paths can run side by side, with matching turns and even sudden changes in direction, which made the whole thing even harder to explain.
No one had actually seen them move before. Research led by Dr. Brian Jackson of Boise State University points to the rarity of the right conditions and the extremely slow pace as key reasons the phenomenon went unobserved for so long.
A Patient Setup That Finally Paid Off
To catch the stones in action, researchers installed a weather station that recorded wind speeds every second and fitted 15 stones with motion-activated GPS units.Findings published in PLOS ONE describe how this setup allowed scientists to capture real-time data during a rare period when the playa filled with water. As Dr. Richard Norris from the Scripps Institution of Oceanography put it:
Over roughly two and a half months, researchers documented five movement events, some involving hundreds of stones moving simultaneously.
This dataset finally linked specific weather patterns to stone movement. It also showed how short and irregular these events are, which helps explain why they were never directly observed before.
Thin Ice And Light Winds Drive The Motion
The explanation turns out to be less dramatic than earlier ideas. When the playa floods, cold nights freeze the shallow water into thin ice sheets, just 3 to 5 millimeters thick. When the sun comes up, the ice breaks into large floating pieces.Work by Dr. Norris shows that these panels are pushed by light winds of only 3 to 5 meters per second, which in turn move the stones across the soft mud. The ice does not lift the rocks. It transfers force as it drifts across the surface. The observations show that even gentle winds can move massive stones when combined with the right surface conditions.
The Pattern That Broke the Mystery
One reason this stayed a mystery for so long is the speed. The stones move at only 2 to 6 meters per minute, which is almost impossible to notice unless you are watching very closely or using instruments.Some movements last just a few seconds, while others go on for up to 16 minutes. In one case, stones spread across the distance of three football fields started moving at the same time and traveled more than 60 meters.
Researchers noted that this kind of synchronized motion explains the parallel tracks seen across the Racetrack Playa. When it happens, it is subtle and quiet. You could easily be there and not realize anything is moving at all.
Source:
https://dailygalaxy.com/2026/05/moving-300kg-stones-explained/
Other related post in the forum, the video in one reference was not found
https://www.treasurenet.com/search/4428469/?q=Racetrack+Playa&o=relevance
