Nasa claims our moon's 'tattoos' were caused by solar wind

Our moon is scarred with a series of so-called'lunar swirls' that stretch tens of miles across. They are only found on the moon and their origin has remained a mystery since their discovery in 1970s. Previous observations suggested comets may have caused the'tattoos', while others blamed the mystery marks on solar wind. Now, using computer models to test these theories, Nasa has discovered the most likely cause is how charged particles respond in the satellite's magnetic field. Previous observations suggested comets may have caused the'tattoos' (pictured), while others blamed the mystery marks on solar wind.