"Moreover, since the sun remains stationary, whatever appears as a motion of the sun is really due rather to the motion of the earth"

Nicolaus Copernicus was a 16th century astronomer who proposed the heliocentric design of deep space, which mentions that the sunlight is the facility of deep space as well as the worlds revolve around it. In this quote, Copernicus is recommending that the sun appears to move across the skies, however this is really as a result of the movement of the planet. This is because the sun is fixed, while the earth is revolving on its axis as well as orbiting around the sunlight. This suggests that the sun shows up to move across the sky from east to west, but this is actually due to the motion of the planet. Copernicus' heliocentric model of deep space was revolutionary for its time, as it tested the typical geocentric model which put the earth at the facility of the universe. Copernicus' model was eventually accepted as well as is still the accepted design of deep space today.