The Blue Sky is an optical illusion:
The sea looks blue, but a sample of sea water collected is seen to be crystal-clear and colorless. Then why the sea looks blue? It is due to an optical illusion produced by the scattering of light. We know that the white light is composed of seven colors, namely violet, indigo, blue, green, yellow, orange and red. Among these colors, red is of longest and violet is of shortest wave-length. When white light falls upon the sea water, the water molecules of the sea scatter the bluish part of the spectrum at least 10,000 times more than the reddish part of the spectrum. So, the sea looks blue.
Similar is the case with the blue sky and the gas molecules of our atmosphere. Here also the bluish part of the spectrum is scattered many times more than the reddish part of the spectrum and this makes the sky look blue. But during the rising and setting of the sun, bluish portion is scatters away from our vision, the reddish part reaches our eyes and this makes the sun red during rising and setting. As our earth and its atmosphere are spherical, the blue sky also appears to be spherical in shape.
So, the sky above the earth is an optical illusion (just like a rainbow) created by the scattering of light by the gas molecules of the atmosphere. If we go to a planet that does not have an atmosphere, we shall not observe a sky there. The moon is a satellite of the earth that does not have an atmosphere. So, if we go to the moon, we shall not see a blue sky but deep darkness in every direction. But Allah is totally ignorant of these scientific facts and does not know that the blue sky over the earth is simply an optical illusion.
But had Allah been the creator of this Universe, He would not have said that the sky is a solid roof over the earth which He has created and fixed in position without any pillar, with the help of His extra-ordinary miraculous power or “qudrah”. Had He been the creator of this Universe, He would not have said that on the Day of Last Judgment (qiamah) He would destroy this solid sky and the debris would fall on the earth. This single idiotic claim of Allah is more than sufficient to prove that (1) Allah is not the God and (2) He is not the creator of the Universe.
Another declaration of Allah makes one to believe that He is ignorant of the real nature of the sun and other stars in the sky. He says that, on the Day of Last Judgment, He will bring the sun very close to the earth and it will be only a mile away from the earth. So, it reflects Allah’s complete ignorance about what would happen If the sun comes so close to the earth. He does not know that, in such a case, the earth will evaporate instantly. All these utterances of Allah reflect that His wisdom is no better than that of an illiterate Arab Bedouin of 7th century. But it is really unfortunate that many Western scientists, being heavily bribed by the Saudi Arabia and other oil-rich countries of the Middle East, have started discovering science in that idiotic book called Koran. The fool called Allah, who does not even know the reality of the sun, these treacherous scientists have started to say that, Allah has mentioned the existence of black holes in the Universe.
According to the wisdom of Allah, the stars in the sky are nothing but lamps which He has created to decorate the sky and to guide the sailors to navigate at night. So, for Allah, destroying a star is no more than putting out a lamp. But the said bribed cosmologists are trying to interlink such verses of the Koran as creation of extinguishing of stars and creation of black holes.
No mentioning of the Universe in the Koran:
In fact, it seems that Allah does not know that there is a thing called the universe. There is not a single verse the entire Koran that mentions the existence on this Universe. Everywhere, Allah says that He has created the heaven and the earth, or to be more particularly, He has created this earth and seven heavens. But the above mentioned dishonest scientists are equating heavens to the Universe. But they remain silent about the seven heavens which Allah claims to have created, as it is not possible for them to divide the universe into seven different parts.
One should recall that, according to Islamic scriptures, as said above, sky is a solid structure created by Allah as the roof of the earth, and hence all visible luminous objects, or heavenly bodies must lie under this opaque sky. And hence, this solid sky is the virtual boundary of the Islamic universe. What is the distance of this boundary from the earth? In this aspect, the Islamic scriptures say that, Allah has created seven heavens above this boundary and there He has built a heavenly Kaaba, just above the Kaaba of Mecca. So, if anyone drops a plumbing rope from the heavenly Kaaba, it would touch the mundane Kaaba at Mecca. It would be possible for a man to reach the heavens by climbing that rope, but it would take 700 years. So, to calculate the height of the solid roof, one has to calculate the height a man can climb a rope in 700 years.
In this context, it would be relevant to mention that the Angel Zibrail (Gabriel) used to take nearly 12 hours to cover this distance. Whenever, Allah wanted to reveal a new verse (or verses) of the holy Koran, Angel Zibrail used to leave heaven in the evening, with this new message and reach the earth next morning. After communicating the new message to the Prophet, he used to leave the earth in the same morning and return to the heaven next evening. He also used to fly with his 100,000 wings to cover the distance.
It is now well known that the three quarters of our atmosphere lies within the troposphere, and the depth of this layer varies between 17 km at the equator and 7 km at the poles. The ozone layer, which absorbs ultraviolet energy from the Sun, is located primarily in the stratosphere, at altitudes of 15 to 35 km. The Kármán line, located within the thermosphere at an altitude of 100 km. So, at heights above 35 km, the atmosphere becomes so thin that it not possible for any object to fly. However, the very thin exosphere can extend from 500 up to 10,000 km above the surface of the earth.
The animal Buraq that took Muhammad to heaven
It is interesting to note here that during his night journey to heaven, the Prophet Muhammad used an animal called Boraq, which is a bit bigger than a donkey but slightly smaller than mule and had two wings. So, it appears that the creature flew the Prophet to the heaven. The incident reflects Allah’s ignorance that nothing can fly with wings at a high altitude where the atmosphere is exceptionally thin. There is another problem too. If the sky is a solid structure, then how the Prophet could penetrate that solid sky to reach heaven and meet Allah? It is also equally, how Prophet Muhammad and the animal baraq survived in such a rarified atmosphere or vacuum.
Similar are the problems with the Angel Zibrail. How he could fly at such a high altitude with very thin or no air at all? How could he have been able to penetrate the solid sky while travelling between the heaven and earth? Quedtion naturally arises – Did Allah create a secret hole for the convenience of
Zibrail and did the Prophet utilized the same hole during his night journey to the heaven? Most astonishing is the fact that even the so called educated Muslims are continuing to believe in these cock and bull stories for centuries. Many believe that the Muslims, who are trained from their childhood in the Koranic belief-system, gradually lose their individual capabilities of logical thinking and judging things using their own intelligence and experience.
There is also another reason. Islam is package and a Muslim has to believe in all its aspects. A Muslim cannot say that he believes in such and such aspects and do not believe in its other aspects, he would immediately be declared an apostate that calls for a death penalty. So, Islam is a mousetrap. It has an entrance but no exits. Recently in Iran, Youcef Nadarkhani, a member of the Church of Iran ministry and pastor faces death penalty on charge of leaving Islam and converting to Christianity. 
Pastor Youcef sentenced to death for apostasy in Iran
Allah’s heaven or paradise:
Allah’s heavens, as narrated in the Koran, is nothing but a residential complex to be used by the inmates of Allah’s paradise as dwelling places. But the bribed and treacherous scientists (or cosmologists) of the West are shamelessly equating Allah’s heavens as the Universe. In the Koran, Allah always says that he has created seven heavens, but the said cosmologists are failing miserably to interpret this aspect of Allah’s heaven as this Universe cannot be divided into seven parts on any plausible basis.
Whereas, Allah’s description of His seven heavens matches if we consider it a 7 storied residential complex. This author has discussed this Islamic heaven quite elaborately, in an article Destination:
Allah’s Brothel . In reality, Koran is a book based on the wisdom of the illiterate, pastoral and nomadic Arabs of 7th century. It is the most idiotic most undisciplined book in the world. In fact, it is a book for the donkeys, of the donkeys and by the donkeys. So, it is sheer wastage of time to discuss what Allah has said and not said in that idiotic book.
In one of the verses of the Koran, Allah says that He is expanding His heaven. It tells that Allah is expanding His residential complex, so that it could accommodate more people. But a bribed cosmologist (or a well paid traitor according to Ali Sina) has tried to link this verse with the concept of an expanding universe as claimed by the Big-Bang theory. But most astonishing fact in this regard is the conversion of the most famous physicist and cosmologist Stephen Hawking to Islam and his endorsement that Koran contains many modern theories of science.
There is no doubt that these scientists are doing this in exchange of billions from the Muslim world.
But they should come to their senses and realize that by doing so, they are axing there own legs. Their examples would tempt millions of his countrymen to convert to Islam, and ultimately turn their motherlands into Islamic states.
References:  http://theundergroundsite.com/index.php/2010/12/in-iran-a-christian-pastor-faces-death-sentence-for-apostasy-14762 also seehttp://www.faithfreedom.org/features/news/iran-christian-pastor-faces-death-penalty-for-apostasy/  http://islammonitor.org/index.php?option=com_content&view=article&id=3923:destination-allahs-brothel&catid=271:hinduism