A cooling system for a heat-generating structure, the cooling system comprising: a heat exchanger in conductive thermal communication with the heat-generating structure, the heat exchanger having an inlet and an outlet, the inlet operable to receive a fluid coolant substantially in the form of a liquid into the heat exchanger, and the outlet operable to dispense the fluid coolant at least partially in the form of a vapor out of the heat exchanger; a first structure which is operable to direct a flow of the fluid coolant substantially in the form of a liquid to the heat exchanger, thermal energy communicated from the heat-generating structure to the fluid coolant causing the fluid coolant substantially in the form of a liquid to boil and vaporize in the heat exchanger so that the fluid coolant absorbs at least a portion of the thermal energy from the heat-generating structure as the fluid coolant changes state; a condenser heat exchanger (41, 341) that is operable to receive a flow of the fluid coolant at least partially in the form of a vapor from the heat exchanger and transfer at least a portion of the thermal energy within the fluid coolant to a heat sink; a second condenser (70, 370) operable to assist the condenser heat exchanger (41, 341) in transferring at least a portion of the thermal energy within the fluid coolant away from the fluid coolant, the second condenser (70, 370) including a thermoelectric cooler operable to remove thermal energy away from the fluid coolant upon application of an electric current to the thermoelectric cooler, the electric current selectively applied to the thermoelectric cooler for removing the thermal energy away from the fluid coolant when the heat sink reaches an undesirable temperature; and at least one valve (322, 324) operable to apportion a flow of fluid coolant to the condenser heat exchanger (41, 341) or the second condenser (70, 370) based on a temperature of the heat sink and a temperature of the fluid coolant traveling between the heat exchanger and the condenser heat exchanger (41, 341). a heat exchanger in conductive thermal communication with the heat-generating structure, the heat exchanger having an inlet and an outlet, the inlet operable to receive a fluid coolant substantially in the form of a liquid into the heat exchanger, and the outlet operable to dispense the fluid coolant at least partially in the form of a vapor out of the heat exchanger; a first structure which is operable to direct a flow of the fluid coolant substantially in the form of a liquid to the heat exchanger, thermal energy communicated from the heat-generating structure to the fluid coolant causing the fluid coolant substantially in the form of a liquid to boil and vaporize in the heat exchanger so that the fluid coolant absorbs at least a portion of the thermal energy from the heat-generating structure as the fluid coolant changes state; a condenser heat exchanger (41, 341) that is operable to receive a flow of the fluid coolant at least partially in the form of a vapor from the heat exchanger and transfer at least a portion of the thermal energy within the fluid coolant to a heat sink; a second condenser (70, 370) operable to assist the condenser heat exchanger (41, 341) in transferring at least a portion of the thermal energy within the fluid coolant away from the fluid coolant, the second condenser (70, 370) including a thermoelectric cooler operable to remove thermal energy away from the fluid coolant upon application of an electric current to the thermoelectric cooler, the electric current selectively applied to the thermoelectric cooler for removing the thermal energy away from the fluid coolant when the heat sink reaches an undesirable temperature; and at least one valve (322, 324) operable to apportion a flow of fluid coolant to the condenser heat exchanger (41, 341) or the second condenser (70, 370) based on a temperature of the heat sink and a temperature of the fluid coolant traveling between the heat exchanger and the condenser heat exchanger (41, 341).