Cosmology; Universe.
The Barrier of Time
We know that the Sun, when seen during the day, would already be in another real position in space. That is, what we see is the image of the Sun and not itself. This is due to the limited way in which sunlight travels the 150 million kilometers that separate us. Moreover, this image, displaced from the Sun itself, always has the same volume and brightness, moving over the ecliptic with constant velocity and acceleration. This creates the illusion that we would be at the center of the universe, and that the Earth's orbit would form a circle over time, not an ellipse. These problems would be caused by the time barrier. That is, the retention of time in our future, or within the Sun's future cone of light, would be virtually pushing us somewhere in the universe's past, in a curious form of temporal exile. Hope you like it!
On Youtube fill in the blank: J.R. Silva Bittencourt