The last man to walk on the moon says he can’t explain what it was like up there but that more and more people may learn soon enough — thanks to a trillion-dollar industry hidden in the lunar dust. Dr ...
Apollo 17's Harrison Schmitt in the Taurus-Littrow Valley, from where the volcanic glass beads were collected. | Credit: Eugene A. Cernan/Photomontage by Eric Hartwell and NASA via Wikimedia Commons ...