Great minds of world keeps on guessing that Does life exist beyond Earth? The question that attract us is that What else is alive out there? There is no neat sentence that sums up what life is, no mathematical formula, no straightforward schematic. Just us with lots of questions to be answered. We search the skies for signs of intelligent life in the universe, and, as we learn more about the heartiness of life on Earth, the prospect of life on other planets becomes even more intriguing.
Discoveries show that the possiblity is greater that life does exist.Scientists have discovered microbes that are resilient to levels of heat, cold, salt, acidity, and radiation that would kill humans. Some of these so-called "extremophiles" have been found thriving in complete darkness, in parched deserts and even miles below ground. So, they would be more easily adaptive to not so harsh situation on other planets.
The most basic requirement of life on Earth is the presence of liquid water. Water is important to life because, in liquid form, it is an excellent medium for carrying chemical and biological compounds. It is also stable as a liquid over a wide temperature range, a temperature range that (conveniently) accommodates a wide range of biological processes. In identifying places where life may exist, astrobiologists are looking for signs of water, particularly in liquid form.Saturn's moon, Titan is a perfect candidate: the discovery of evidence of liquid water-ammonia on Titan provides the potential for life-bearing polar fluids outside what is normally regarded as the habitable zone. Astronomers have discovered a new planet called Gliese 581 c.It is the most Earth-like planet ever found. It orbits a star and may have habitats capable of supporting life.
Various discoveries are made which reminds us how close we are of getting planets like earth. But still we don't have any solid knowledge about a single alien microbe. this is a science infused with optimism. Charles Darwin gave us our evo¬lutionary roots.Life on other planets is possible as the same way on earth. I'll assume that every solar system has had, at one point or another, developed the perfect conditions for existence of carbon-based life forms on one of its planets.
But why inspite of being close we are yet so far? That silence is maddening. why have we found no evidence — no signals, no radio waves — that intelligent life does exist?Experiments like sending light or signals are made. But the problem is that The reflected light is invisible. The stars burn a billion times more than the planets.At times when we watch space movies we find a burning desire. To know the truth. The truth about ‘others’. Space is enoromous. Filled with secrets, answers and knowledge. The inevitable truth is we have to go on for searching answers until the morning we wake up with the answer to the unknown.