The current world of science says that there is no such thing as sky. The fact is that only so much has been discovered so far.

But God says in the Qur'an there are seven heavens. It contains the earth spheres, the sun, the moon, the stars, and everything else that we see in the first sky. Of this, only four percent of what we see studied in the first sky is detectable, or visible to us through telescopes or satellites.

The Sun is the nearest star to the Earth.. Now there are more star clusters beyond the Sun.. At least it has not been possible to study on Mars itself. Not even reaching the sun above this and beyond this. But to saying that there are no seven heavens is very foolishness.

Then we need to understand that the sun, moon, columns, star clusters, star societies, all of which we see are in the first world. Above it are the six celestial worlds There are others. Nothing can be reached there by this human race. We have no right to assert that it is not there, thinking that we have not seen it.

God says in the Qur'an that you observe the sky.. and find out.. whether you can see any gap or deficiency in what God has created.. no matter how much you look, you will get tired. God encouraging the human beings study and explore the sky and about all His creations.search and search, and  always think and think you will find the truth.

Again the Qur'an says that the first world is sealed and secured. Those who belong to the jinn class can travel in the world and space. Some of the jinn in it reside in many parts of the first world. They would secretly listen to God's instructions to the angels. That is why the first  world is sealed and protected by the God.

These people have not been able to fully discover what is on this earth. Similarly, the Arctic region,the Amazon forest has not studied it. These people have not been able to find out about the depth of the sea.. even what is in the center of the earth.

Like this, many scientific truths have been conveyed to humans by the Prophet Muhammad, peace and blessings of Allah be upon him, in the Qur'an even before 1400 years ago. Each of us needs to study it and find out the truths.