“The total number of stars in the Universe is larger than all the grains of sand on all the beaches of the planet Earth,” Carl Sagan famously said in his iconic TV series Cosmos. But when two of those grains are made of a silicon-and-oxygen compound called silica, and they were found hiding deep inside … Continue reading "Cosmic C.S.I.: Searching for the Origins of the Solar System in Two Grains of Sand"