over 1thousand years ago most of the glob's population, believed that the earth was flat, and the sun was where gods lived.
But in the Arabic world it was a different matter.
Ancient text quoted from their Qur'an
12) Orbits of celestial bodies:
"It is He who created the night and the day, and the sun and the moon, all
(the celestial bodies) swim along, each in its orbit." (21:33)
4) Moon is reflected light of the sun:
"Blessed is He who made constellations in the skies, and placed therein a lam...
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Have you ever seen a spaceship when you were out for an evening stroll?
You may think not, but you may be wrong. 
The Image on the right is a map 
Germany was decades ahead in the concept of space and living conditions. AS indicated in this article, suggests the extend of Germany experiments in underground facilities .