The Protected Roof

The atmosphere only lets rays required for life
reach the Earth. Ultraviolet rays, for example,
make it to the world only partially. This is the
most appropriate range to allow plants to make
photosynthesis and eventually for all living things
to survive.
In the Qur'an, God calls our attention to a very
interesting attribute of the sky:
"I (Allah) made the sky a preserved and protected
roof yet still they turn away from Our Signs.."
(The 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. Interestingly, the atmosphere 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 beings. The majority of the intense
ultraviolet rays emitted from the sun are filtered
out by the ozone layer of the atmosphere and
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
about minus 270° C.
Most people looking at the sky do not think about
the protective aspect of the atmosphere. They
almost never think what kind of a place the world
would be like if this structure did not exist. The
above photo belongs to a giant crater caused by
a meteor that fell in Arizona, in the USA. If the
atmosphere did not exist, millions of meteoroids
would fall to the Earth and the Earth would
become an inhabitable place. Yet, the protective
aspect of the atmosphere allows living things to
survive in safety. This is certainly God's
protection of people, and a miracle proclaimed in
the Qur'an.
The energy released in a Sun burst is so powerful
that the human mind would hardly comprehend
it: A single burst is equivalent to 100 billion
atomic bombs similar to the one dropped on
Hiroshima. The world is protected from the
destructive effects of this energy by the
atmosphere and the Van Allen Belts.
As we move from the Earth, which is perfectly
fitted for human life, beyond the atmosphere into
the space, we come across a freezing cold. The
world is protected from the freezing cold of space,
which is around -270 degrees, by the help of the
atmosphere.
The magnetosphere layer, formed by the magnetic
field of the Earth, serves as a shield protecting
the earth from celestial bodies, harmful cosmic
rays and particles. In the above picture, this
magnetosphere layer, which is also named Van
Allen Belts, is seen. These belts at thousands of
kilometers above the earth protect the living
things on the Earth from the fatal energy that
would otherwise reach it from space.
All these scientific findings prove that the world is
protected in a very particular way. The important
thing is that this protection was made known in
the Qur'an in the verse "We made the sky a
preserved and protected roof" 1,400 years ago.
It is not only the atmosphere that protects the
Earth from harmful effects. In addition to the
atmosphere, the Van Allen Belt, a 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.
Dr. Hugh Ross has this to say on the importance
of Van Allen Belts to our lives:
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 similar to
the one dropped on Hiroshima. Fifty-eight hours
after the burst, it was observed that the magnetic
needles of compasses displayed unusual
movement and 250 kilometers above the earth's
atmosphere, the temperature suddenly increased
to 2,500° C.
In short, a perfect system is at work high above
the Earth. It surrounds our world and protects it
against external threats. Scientists only learned
about it recently, yet centuries ago, God informed
us in the Qur'an of the world's atmosphere
functioning as a protective shield.
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