Since the beginning of the human civilization, the philosophers looked to night skies and found many heavenly bodies moving in the cosmos. They gave them names and based on their annual reappearances of the shapes at a particular place, associated them with our horoscope and Astrology was born.
With advent of telescopes and radio telescopes it was found that there are many galaxies in the universe which are full of stars (like our Sun) and associated planets and in a galaxy there are innumerable solar systems having their own Sun. A particular Sun at a great distance looks like a star.
The size of universe is not comprehensible and search for distant stars or their planets is only a step forward to understand the origin and extent of the universe.
As compared to the life cycle of a human, the astronomical distances and time domains are at a very higher side and only of academic interest.
Our ancestors spiritually tried to explain it with the word 'Anant' (infinity) which means that universe is infinite. Our mythology is full of such explanations of this mysterious universe.
Knowledge is power.
If really there is another planet which will be similar to planet earth where the humans can survive, that will be the best discovery. Many Scientists are working on such areas and there may be a great discovery shortly.
'Idhuvum Kadandhu Pogum "
Even this challenging situation would ease
However, if you sign up for spotthestation.nasa.gov, the NASA will email or text you when the international space station is passing over your location and when new discoveries are made.
Hackers never learns but always wins!