The Universe is the space/region/place that has no limit. The infinitely large space even the imagination cannot reach its boundary. When I was a child, I have one question that, “ what is there outside the universe?” It is because we have seen the limited two dimension figure of space in our books. But today I can’t imagine its dimension.
Universe itself and its entities are the mysterious for scientist also. There are lots more things to know about it and lots more things to discover. There is dark as well as bright matter in the Universe. Bright matters consist of the celestial bodies such as stars, planets, satellites, asteroids, meteors etc. The unseen part of the universe is the dark matter. One question arises that why the unseen objects are considered as the matter. As scientist had reached the nano region, the unseen space might contain the microscopic particles, and other types of waves and energies.
The exploration on space using technologies have accelerated from the after the Second World War. The main focus on space is on the origin and the lives on other planets. We often heard the news that People see the UFO (Unidentified flying objects). Actually, it is not sure that whether it is a spaceship of Alien or not. It is the frequent case in the cities like Moscow where People were keen about the astrophysics, not in the small cities. Whatever be the news, scientist thinks that there is another planet where life exists.
Once scientist had found the radio signal from the space, after many research of that signal, they propounded that signal meaning is the word “WOW” and found that it had sent about 200 years ago. It is also not sure that whether it is sent by Alien or the collision of any flying objects in the space. When we send the reply of it, our fourth generation would start. The sender might also die.
I truly believe that there are Aliens. As Stephens Hawking says, “There may be Aliens of any type". It may be unicellular or multi cellular. They may be herbivorous or carnivorous. Or they may get energy from the sun or from any other electromagnetic radiation. They may be very few in number or they may be densely populated than our planet. As greenery is the symbol of life in our planet, such that the blue or red or any other color is the symbol of life for Aliens. Perhaps they may have the much developed technology than us. As we are trying to study other planets, they may have already sent any spy in the earth to study about earth. No one knows. The visible spectrum for us is invisible to them and the visible spectrum for them is invisible for us. It might be the reason that we cannot see and meet them. If it is true then, we can only share with signals.
Whatever may be Aliens looks like, however may be the Aliens, wherever they live, if scientist have found with total proof, then that will be the great achievement of this century. Or if somebody captured the UFO very closely, that will be also the great achievement.
Arjun Kumar Gupta
B. Sc 3rd year
Arjun_gupt04@yahoo.com
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