Barbies used to successfully test moon dust cleanup method with liquid nitrogen.
Scientists at Washington State University have tested a new method of cleaning moon dust from spacesuits by blasting Barbies dressed in makeshift spacesuits with liquid nitrogen. The cryogenic fluid removed over 98% of the volcanic ash substitute, which is similar in consistency to lunar dust, without causing damage to the Kevlar-like suit material. The experiment worked thanks to the Leidenfrost effect, which occurs when water hits a surface hotter than its boiling point. The team presented its findings to NASA to aid the agency's Artemis moon program.