Planetary scientist Akira Tsuchiyama, Visiting Research Professor at Ritsumeikan University in Japan, has finally found the sought-after meteorite water that has eluded scientists for years. There was still liquid water in calcite which was embedded in the Sutter’s Mill meteorite, which is a carbonaceous chondrite. Its chondrules, or spherical pieces of different minerals, mean it did not fully melt in the heat of early solar system formation. These types of meteorites are like cosmic time capsules. “Most of calcite (CaCO3) grains in carbonaceous chondrite should precipitate from CO2-rich fluid,” Tsuchiyama, who led a study recently published in Science Advances, told SYFY WIRE. “Calcite is most likely precipitated from a fluid, which is responsible for aqueous alteration recorded in carbonaceous chondrites, in a parent body of the meteorite, so calcite grains should contain inclusions of such fluid.”