It would seem that a new study, published by the Australian National University, might be capable of ruling out alien life due to inadequate planetary conditions. In the paper’s synopsis, the scientists declared that we haven’t discovered alien life so far because aliens are most likely dead.
As astounding as such a conclusion would seem, the astrobiologists in charge of this new quest for life, have forwarded a very plausible theory. A doctor Aditya Chopra, astrobiologist and the lead author of the paper made a few declaration regarding the paper’s conclusion.
In his introductory notes, the doctor and the team of scientists declared that we all think that abundance makes up for life. Naturally, we tend to think that Earth is not the only planet in the Universe capable of sustaining life.
But, as the scientists pointed out, although that there are many planets in the Universe that might theoretically sustain cellular and even sentient life, most of the organisms found on these worlds rarely survive the first phases of the evolutionary process.
Chopra also expressed that most planets are unstable. In order to create a sustainable environment, primary life forms must be capable of regulating gases like water and CO2. This process can offer the planet some degree of stability, meaning that by modulating the levels of water and CO2 the life forms can actually stabilize the surface’s temperature.
Now, when talking about hospitable environments, the scientists brought into discussion three planets, each of them found in our solar system. According to our estimations, nearly 4 billion years ago, Venus and Mars met all the conditions for life to develop.
Unfortunately, over the course of many years, Venus’s atmosphere became dense and toxic, while Mars quickly transformed into an icy wasteland. Charley Lineweaver, an associate professor working on the same project declared that the two planets are two textbook examples of lush worlds which quickly became inhospitable. The associated professor also pointed out that even if there were traces of unicellular organisms on the two planets, they’ve failed in stabilizing the planetary conditions. This resulted in the early demise of the organisms before they had the chance of evolving into sentient life.
A new theory in astrobiologists suggests that man was unable to detect any signs of alien life because the aliens are most likely dead. By applying the same theory to our very own planet, we soon discover that the planet did not nurture life, but life nurtured the planet, being able to tame the elements in order to turn it into a hospitable environment.