Tiny Tests Seek the Universe’s Big Mysteries

"Huge supercolliders aren’t the only way to search for new physical phenomena. A new generation of experiments that can fit on a tabletop are probing the nature of dark matter and dark energy and searching for evidence of extra dimensions."

Over distances of a few dozen microns — a little thinner than that dollar — known forces like gravity could get weird, or, even more exciting, previously unknown forces could pop up.