Beijing—Planetary scientists in China found hints of water "reservoirs(水库)" on the moon. Over billions of years, the surface of the moon (hit) by space rocks, causing the soil (melt) and be ejected(喷射) into space. Then it is cooled down and falls back to the lunar surface, (form) beads(珠子) of glass. The Chang'e 5 probe, returned to Earth on Dec 17, 2020, brought back total of 1,731 grams of rocks and soil from the lunar surface, including glass beads.
After looking into the glass beads from the sample, the international research team (find) that about one ton of glass beads may contain 0.5 kilograms of water. Hui Hejiu, one of the study authors said, "This 'water' wasn't a liquid instead took the form of hydrogen(氢气). The hydrogen (contain) in the glass beads can (easy) be turned into the water we can use." If the water in the beads is easy to get, it will be a "really big deal" for deep space (explore) missions in the future.
