The distances that we know as stretching from one star to another or from one galaxy to another may turn out to be incorrect. This, in its turn, may lead to the conclusion that the cosmic dimensions and borders are incorrect as well. Imagine that our universe is not 13.7 billion years old, but rather older or younger. Now I’ll try to explain it referring to the following reason.
The light speed has different speed rates depending on the environment or the substance form. Consequently, in the absolute vacuum environment, the light speed is 300,000 km/sec, or if we are more exact, then 299,792.458 km/s.
The scientists have recently succeeded in slowing the speed at which the light speed passed through the gas by 17 m/s by means of ultra-cooling of atoms in laboratory conditions. If the issue is so complicated, then how can we assure that the light coming from a galaxy or a star is a long way measured by millions of years, or how can we determine the exact distance or age, provided that the environment itself changes.
1. The cosmos is not fully composed of absolute vacuum.
2. The environment is not the same in all of the cosmos. In one place we can see the absolute vacuum, but in another one there are some obstacles like gas mixers, gravity, dark energy and so on to dissemination of light.
Additionally, the temperature in inter-galaxy distance is less the absolute zero, -273. But the light passed through the nebula can face with gas mixers and different temperature changes which makes nebula itself. And for example, the light coming from Y star of X galaxy obstacles to come it with absolute vacuum speed from different substance form. If it’s so, why we should use the standard light speed for determining the distance among the distant objects in the cosmos?
For example: The distance between Eagle nebula and our planet is 7000 light years. Now it’s the question: is it really that the Eagle nebula is far from us 7000 light years, or farther? Or may be nearer?
If measurements are not correct, so how can we determine the exact distance?
I don’t know…
Translated by Gulya Khaki