Ions Beams and Atom Smashers Expose Secrets of Moon Rocks
On July 20, 1969, as Apollo astronaut Neil Armstrong climbed down the ladder from the "Eagle" lunar landing module, he found himself surrounded by a sea of grey - an expanse of powdery dust no human had ever seen in person. The iconic print made by his left boot marked but the first step on a long journey of discoveries about the Moon and our own world - both of which hold secrets that scientist