Most of the experiments and phenomena on the speed of light can be explained either by the ether theory or the emission theory. The emission theory can explain the Michelson-Morley experiment. The ether theory can explain the Sagnac and Michelson-Gale experiments, moving source experiments, the Silvertooth experiment and Bradely Stellar Aberration. Therefore, it is highly likely that a single theory can be formulated which is a fusion of the emission theory and the ether theory. Neither does the ether exist, nor is the ballistic theory correct. The emission theory and the ether theory are not wrong but incomplete separately. This paper proposes a theory which seamlessly fuses the two into one. The speed of light is constant relative to the apparent source. A consequence of this is that it is impossible to detect absolute motion by phase comparison using a single light source. The fallacy with the Michelson Morley experiment was that a single light source was used. Modern Michelson Morley experiments use two light sources but then compare frequencies (not phases) which will not change for co-moving source and observer[3]. All of the known light speed experiments agree with this theory. We call the new theory the Apparent Source Theory. A direct evidence of the two-source claim made above is Ronald de Witte’s experimental detection of absolute motion by comparing the phases of two independent Cesium clock stabilized signal sources.