Aliens exist nowhere!!!
Written by: Saadeqa Khan
“Only
two possibilities exist, either we are alone in this universe or not, both are
equally terrifying”.
The
mankind is residing on a unique planet, having a bulk of creatures, categorized
as the plants, animals and greatest of them, all is the human being. Our planet
earth has a continuous series of genetic reproduction of all these species
since the beginning due to its suitable environment. The most significant
of them is that we are blessed with a planet that lies exactly in the
habitable zone of the natural source of energy, “the Sun”.
We have
a shelter in solar system, where the essential elements of life gently
mixed together in the warm churning area, a sort of environment where life
can develop. Either the mankind is the only wise creature of this universe
or Aliens are there somewhere, Is the question, the scientists and researchers
are scratching their heads since decades, but no clear evidence of human-like
creature on any other planet, that seemingly identical to earth yet they
found.
Before
going into further details regarding the research and breakthrough, have a
brief look at the possibilities that life might exist somewhere in the
universe. The most important of them is the planet’s distance from its host
star; it should be within the Habitable Zone of that star.
When the cosmologist went out surveying the sky for new planets, the first clue
that life might exist on that super earth, is the presence of methane as
by-product as well as nitrous oxide. On early stage, the main focus of
astronomers is on star’s brightness, which would indicate its size and mass.
Among all newly developed techniques, the Transit Method is
preferred by scientists for detecting out and collecting the related data to a
specific star. If its brightness dims periodically over a course of time, then
chances would be far higher that this star would have been a planet orbiting in
its habitable zone. Further the Spectrometer and Doppler's shift
techniques contribute a lot in examining the color of light, red and blue shifts
more precisely along with the radius and size other notable characteristics of
that planet.
Later
on, after discovering a planet in the habitable zone, the researcher focused
their efforts on the light that's coming up towards the earth. The most lionize
for them are the Spectral Lines those could indicate the
presence of volatile gasses like oxygen, nitrous oxide, and methane in
its atmosphere. If the spectral line shows the great amount of methane much
more that could be obtained by Volcanoes and other non-life based sources, over
the careful observation of course of several years, if presence of methane
verified, nitrous oxide and other markers of biological life then it will be a
breakthrough, they found a planet with life. Though these techniques are too
good, the cosmologists are apart in full filling the dream of finding out the
Aliens somewhere in the universe so far. Hopefully in future with new
techniques and modern technology, might be they are able to discover a super
earth with better ability to observe and measure this vast universe.
According
to Harvard University Researchers till 2018, they
will launch a new telescope more powerful than Hubble; they would
capable to retrieve the man like creature outside our solar
system. However, the prominent Scientist and Cosmologist “Stephen
Hawking” has warned the humans not to make a contact with Aliens,
stated recently, the chances are a bit higher that the Alien's civilizations
might be far more developed and would have better technology than us that could
be harmful to mankind. But either the aliens would happen to be amicable with
earthly creatures or proved antagonist, Hawking has firm belief that
they must exist somewhere in the Universe.
