A cooling apparatus includes a brine circuit through which brine flows, a pump disposed on the brine circuit, and a heat exchanger unit including a heat absorbing member and a heat radiating member. The heat absorbing member is in communication with the brine circuit. The heat absorbing member is capable of conducting heat generated from a cooling object to the brine for cooling the cooling object. The heat radiating member is in communication with the brine circuit and capable of receiving the heat from the brine. The brine circuit is configured such that the brine passes through the heat exchanger unit at a pressure equal to or lower than an atmospheric pressure.