The beautiful “lunar swirls” were created by erupting lava, billions of years ago. Credit: NASA/GSFC/ASU
The mystery of ‘lunar swirls’ - science news - space

Lunar swirls are features on the surface of the moon, not found on any other body in our solar system, whose origin is not completely understood. A new theory about how they formed was developed by a team of researchers. Using complex mathematical models, the scientists concluded that the swirls were probably caused by the interaction, some 3 billion years ago, between erupting lava and the moon’s strong magnetic field. According to the models, each swirl must stand above a magnetic object that is narrow and buried close to the moon’s surface. These objects are most likely lava tubes or disks.

Read the full story: University of California Berkeley
Scientific publication: Journal of Geophysical Research