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Yes it does. Photons do not ‘age’ though they travel through time with respect to our reckoning. They are ‘ageless’ in all practicality. For example all light, EM waves, travel hundreds, thousands, millions or billions of years to get to us, from ...


The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. In miles per hour, light speed is, well, a lot ...


Light actually “slows down” every time it has to travel through anything but a vacuum. Look up Cherenkov radiation to see what happens when light initially travels faster than it can through a ...


Continue reading "Does Light Experience Time?" Skip to content ... mass can never move through the Universe at light speed. ... a flat universe in their direction of travel. Since photons do not ...


The question of how light travels through space is one of the perennial mysteries of physics. In modern explanations, it is a wave phenomenon that doesn't need a medium through which to propagate. According to quantum theory, it also behaves as a collection of particles under certain circumstances. For most ...


In contrast, light waves can travel through a vacuum, and do not require a medium. In empty space, the wave does not dissipate (grow smaller) no matter how far it travels, because the wave is not interacting with anything else. This is why light from distant stars can travel through space for billions of light-years and still reach us on earth.


The answer is right there in your question. "Light year" is the distance that light travels through space in one year. In one year of time, light travels one light-year of distance through space.


Let's do a quick review. If we want to travel to some distant point in space, and we travel faster and faster, approaching the speed of light our clocks slow down relative to an observer back on ...


Moving through a vacuum, light travels at 300,000 km per second. According to the theory of relativity, it is the ultimate speed limit for the propagation of any physical influence.


The journey takes no time. Since you are going the speed of light, you are not traveling through time, you are only traveling through space.