Apollo 15 brought back green glass beads; decades later they revealed lunar water

Apollo 15 astronauts found unusual green flecks on the Moon's surface. These flecks were later identified as volcanic glass beads containing trapped water. Researchers discovered hydrogen within these tiny beads, proving lunar water existed. This finding challenged the long-held belief that the Moon was extremely dry. The discovery revealed significant water presence deep within the Moon's interior.

By TOI SCIENCE DESK