Arrangements related to sensing systems and methods are described. A sensing system can include a sensor track and one or more sensors. The sensor track can be operatively connected to a vehicle surface, such as at least a portion of a perimeter of a roof of a vehicle. The one or more sensors can be operatively connected to the sensor track such that the one or more sensors move along the sensor track while scanning an environment of the vehicle. The sensing systems can include a controller operatively connected to the one or more sensors to control the movement of the one or more sensors along the sensor track. The controller can also receive signals from the one or more sensors relating to the environment. In one or more arrangements, the one or more sensors can include LIDAR sensors.