Light cannot accelerate. When a photon is created (emitted from electrons falling down a higher orbital, particle decay, etc.) it is traveling the speed of light. Photons cannot travel slower or faster than the speed of light. Every observer, regardless of their speed, sees light traveling the speed of light.
Light cannot accelerate. When a photon is created (emitted from electrons falling down a higher orbital, particle decay, etc.) it is traveling the speed of light. Photons cannot travel slower or faster than the speed of light. Every observer, regardless of their speed, sees light traveling the speed of light.