➀ Researchers have developed a new laser system that could miniaturize cold-atom interferometers, potentially enabling them to fit into a shoebox. ➁ Cold-atom interferometers are currently lab-scale and have sensitivities in the range of billionths of a g, with potential for even higher accuracy. ➂ The new laser system uses silicon photonic modulators to reduce size and cost, potentially making these sensors more accessible for various applications.