Researchers have developed a novel large-volume lunar regolith simulant, known as EAC-1A, which is being studied for its properties and potential uses. The simulant is being tested for its reactivity and suitability for extraterrestrial construction, including the possibility of creating infrastructure such as roads on the moon. Scientists are also exploring various methods to work with the simulant, including sintering and 3D printing, and investigating its potential interaction with living organisms.