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The Well-Guarded Sky – a Miracle of the Qur’an

Fourteen centuries ago, Allah sent down the Qur'an. This book of guidance and wisdom calls man to the truth and instructs all human beings to adhere to the values which this mighty revelation contains. From the day of its revelation to the Day of Judgement, this last Divine book will remain as the sole guide for humanity. 

"But it is nothing less than a Reminder to all the worlds." (Qur'an, 68:52) 

As well as being the book of guidance for all the believers, there are many scientific facts that are informed to humanity in the verses of the Qur'an, which have only been discovered by scientists with the aid of the technological advancement of the 20th and 21st centuries.

One of the many miracles of the Quran is an important attribute of the sky:

We made the sky a preserved and protected roof yet still they turn away from Our signs. (Qur'an, 21:32)

This attribute of the sky has been proved by scientific research carried out in the 20th century:

The atmosphere surrounding the Earth serves crucial functions for the continuity of life. While destroying many meteors-big and small-as they approach the Earth, it prevents them from falling to Earth and harming living things.

In addition, the atmosphere filters the light rays coming from space that are harmful to living things. The most striking feature of this function of the atmosphere is that it lets only harmless and useful rays-visible light, near ultraviolet light and radio waves pass through. All of this radiation is vital for life. Near ultraviolet rays, which are only partially let in by the atmosphere, are very important for the photosynthesis of plants and for the survival of all living things. The majority of the intense ultraviolet rays emitted from the Sun are filtered out by the ozone layer of the atmosphere. Only a limited and essential part of the ultraviolet spectrum reaches the Earth.

The protective function of the atmosphere does not end here. The atmosphere also protects the Earth from the freezing cold of the space, which is approximately -270oC (-454oF).

It is not only the atmosphere that protects the Earth from harmful effects. In addition to the atmosphere, the Van Allen Belt-the layer caused by the magnetic field of the Earth-also serves as a shield against the harmful radiation that threatens our planet. This radiation, which is constantly emitted by the Sun and other stars, is deadly to living things. If the Van Allen belt did not exist, the massive outbursts of energy called solar flares that frequently occur in the Sun would destroy all life on Earth.

On the importance of the Van Allen Belt, Dr. Hugh Ross says: 

In fact, the Earth has the highest density of any of the planets in our Solar System. This large nickel-iron core is responsible for our large magnetic field. This magnetic field produces the Van-Allen radiation shield, which protects the Earth from radiation bombardment. If this shield were not present, life would not be possible on the Earth. The only other rocky planet to have any magnetic field is Mercury-but its field strength is 100 times less than the Earth's. Even Venus, our sister planet, has no magnetic field. The Van-Allen radiation shield is a design unique to the Earth.

The energy transmitted in just one of these bursts detected in recent years was calculated to be equivalent to 100 billion atomic bombs, each akin to one dropped on Hiroshima at the end of World War II. Fifty-eight hours after the burst, it was observed that the magnetic needles of compasses displayed unusual movement and 250 kilometres (155 miles) above the Earth's atmosphere, the temperature suddenly increased to 2,500oC (4,532oF).

A perfect system is at work high above the Earth. It surrounds our world and protects it against external threats. Centuries ago, Allah informed us in the Qur'an of the world's atmosphere functioning as a protective shield. 

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