How do scientists hunt for dark matter? A physicist explains why the mysterious substance is so hard to find

This article explains how scientists search for dark matter, a mysterious substance that makes up most of the matter in the universe but does not interact with light. Scientists look for it in faraway galaxies and underground detectors, using gravitational lensing and X-ray telescopes to observe its effects. While they have not observed dark matter directly, they hope that the weak force, which can interact with subatomic particles, might provide a way to detect it.