Laser spectroscopy of atoms can be used as a sensitive tool to measure many physical properties such as time, length, acceleration, and temperature. It has also been used to measure magnetic fields as precisely as the best superconducting magnetometers currently available. Our group has been trying to miniaturize these atom-based magnetic field sensors by use of microfabrication technologies. We have developed a non-invasive multichannel magnetic imaging system sensitive enough to detect the tiny magnetic fields emitted by the brain. These uncooled small sensors could open new and exciting possibilities for brain imaging. They could improve the spatial resolution of the images, open the door for imaging during real-world scenarios, long-term telemetry, and maybe even enable wearable systems in the future.