An exposure apparatus which prevents the damage due to the liquid having
flowed out from spreading and enables satisfactory performances of the
exposure processes and the measurement processes is provided. An exposure
apparatus (EX) includes a movable table (PT), a base member (41) having
an upper surface (41A) that guides the movement of the table (PT), and a
detecting device (60) that detects whether there is a liquid on the upper
surface (41A) of the base member (41).