Apollo astronauts encountered tiny orange beads littering the desolate lunar surface over half a century ago. As Live Science reports, scientists have long proposed that these beads, each smaller than a grain of sand, date back to over three billion years ago, when volcanic eruptions on the satellite were still commonplace. The theory goes that material launched into the air by lunar volcanoes would solidify into tiny drops in the freezing vacuum of space, surviving without any erosion or weather for billions of years. Decades later, researchers have used high-tech microscopic techniques to get a much more detailed look at […]