Berkeley leans into search for light dark matter

Dark matter could be much lower in mass and slighter in energy than previously thought. The search for dark matter is expanding. And going small. While dark matter abounds in the universe--it is by far the most common form of matter, making up about 85% of the universe's total--it also hides in plain sight. We don't yet know what it's made of, though we can witness its gravitational pull on known matter. Theorized weakly interacting massive particles, or WIMPs, have been among the cast of likely...