NASA’s Curiosity rover has discovered opal on Mars. The deposits may prove to be valuable to future Martian explorers not as jewelry but as a potential source of water. Opal is formed when water ...

A gem of a meteorite found in Antarctica is studded with pieces of opal, a crystal that is associated with water. The discovery lends greater strength to the idea that meteorites brought water to ...

Mars may have been wet for a billion years longer than previously thought, new water-related opal evidence from NASA's Mars Reconnaissance Orbiter suggests. The findings have implications for the ...

NASA’s Perseverance rover has uncovered high-purity quartz crystals on Mars, a discovery that could reshape the search for ...

A research team affiliated with UNIST has developed a novel method to synthesize polymer-based particles that mimic the ...