The distances to be traveled are so great that even light or radio waves take a while getting there.
List of How Does Light Travel Through Space
Pictures. In modern explanations, it is a wave phenomenon light travels slower in a medium than it does in a vacuum, and the speed is proportional to the density of the medium. Light traveling through earth's atmosphere moves almost as fast as light in a vacuum, while light passing through a diamond is slowed to less than half that speed.
Light Bends By Itself Science Aaas from www.sciencemag.org
Light does not travel through space at all, light travels through time, and time alone. But when light travels through matter, like interstellar gas or a soup of charged particles, it slow downs, meaning other matter might overtake it. It also behaves as both a wave and a particle, able to propagate through mediums (like air and water) as well as space.
In the same way your state of health is a time phenomenon, not a spatial one.
In the same way your state of health is a time phenomenon, not a spatial one. While light speed is usually the universal speed limit, could information end up traveling faster that that? Light does not travel through space at all, light travels through time, and time alone. They do not need a substance to travel through, but they can travel through transparent and translucent substances.
