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-brought to you by The Spacestellar
" Have you ever thought about the existence of life beyond earth..?? "
" Does there exist an advanced civilization in universe, which is better than humans..?? "
" If so, have they achieved the speed of light..?? "
The Universe which ages 13.8 billion years spreads across billions and billions of miles. It has got a large number of galaxies which has trillions of stars and planetary systems. But there is not even single evidence of life anywhere. Though our scientists have developed so many types of equipment and devices to detect any kind of data outside the earth, there are no pieces of evidence to prove the existence of life outside earth. Generally, we refer to this life as Aliens (those who exist outside the earth). Aliens can be in the form of microorganisms like bacteria or viruses or it can be as complex as humans.
If one questions the existence of life outside the earth, the answer would be definitely yes!!
Because there exists no speciality in our Solar system which couldn't be found elsewhere in the Universe. The matter which constitutes life on earth is also present throughout the Universe. The laws of Physics which apply on the matter present on earth also applies to the matter elsewhere in Universe. So it can't be said that life can exist and survive only on earth. Even if we consider our Solar system, our scientists believe that Jupiter's moon Europa and Saturn's moon Titan and Enceladus have got traces of sensitive organisms. If life could exist in our Solar system, then it could definitely exist elsewhere in the Universe at various habitable planets. If life exists in the Universe, it could be as powerful as humans or it could also be more advanced as well.
Okay, fine. Though we are convinced that the aliens might exist, many questions still get stuck into our minds..
" Does these Aliens visit Earth..?? "
" If so, have they ever being noticed..?? "
Many of the incidents have been noted stating that, the alien spacecraft has been identified in some of the regions. The spacecrafts are popularly known as UFO(unidentified flying objects). Though many of them believe that, it might be aliens, often they are proved to be wrong. These objects are sometimes military drones, hot air balloons or even missiles, which is misunderstood as UFOs. Many of them even believe that Area 51 owned by the United States has got some aliens, sharing their advance technology and equipments with the government. But the US government has always denied to show interest in such fake news.
So if they don't exist on earth now..
" Is it possible for them to visit us in future..?? "
Well, it may or it may not be. As the nearest habitable planet to earth is somewhere around 12 light years from earth, it would take centuries and centuries for them to travel and visit us. To travel such a large distance, aliens need to have a spacecraft that could travel at the speed of light or even more than that. But according to Einstein's principles of Special Relativity, the cosmic limit of our Universe is the speed of light. Because, any matter which has got mass cannot achieve the speed of light. To do so, it requires to have an infinite amount of energy. Even if they achieve the speed of light, they need to overcome the effects of Time dilation, which is impossible. Another possible way is Warp drive or Worm hole, which makes interstellar travel possible, without getting affected by Time dilation. Using these method, aliens could possibly travel to earth in less time. But, once again there are lots of external factors which needs to be considered before doing so.
In short, warp drive is a hypothetical phenomenon through which, the spacetime continuum is expanded behind the spacecraft and it is contracted in the direction of interstellar travel, thereby making interstellar travel faster and reliable. Worm holes are the paths which connect two different parts of the Universe through the curvature in spacetime. It can connect either two different galaxies or even two different Universes(Multiverse theory).
Even if they develop these technologies, the question arises,
" Why would they even travel to earth..?? "
Often in movies, aliens are portraited to be harmful and dangerous. They might travel to earth, either for invasion or to exchange the technologies. Some scientists even suggests that, aliens are the future humans who visit us to study the past and that's the reason they do not harm us.
With so many arguments and discussions, many believe that aliens exist, while many argue that it doesn't, many of them even claim that they have visited earth many times and some of them already exist on earth. But the truth is far away from all of us. Though there are too many questions arising daily regarding the aliens, our scientist are continuously trying to contact them through radio signals and other codes.
Well, if we could successfully contact one of them,
" What would happen..?? "
" Is it good or bad for humanity..?? "
" What do you think..?? "
" The Universe is one step ahead of humans, when it comes to reveal the secrets "
-ARJUN N K
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