Life is short: while looking aliens, and have died – Venezolana de Television

Caracas, January 22, 2016.- “In his early life is fragile, so we rarely evolve fast enough to survive,” said the website . Australian National University professor of planetary biology Aditya Chopra

The reason for this brevity is the high volatility environments: to suit your needs as agencies must learn quickly to regulate the presence of water and carbon dioxide carbon in the atmosphere. If they fail, they expire, and Charles Lineweaver Chopra argue in an article signed jointly in the revista’Astrobiology ‘.

The researchers admit that living beings in their most primitive forms might appear in numerous places the universe, but few of them existed for a long time. So, Venus and Mars, like Earth, could shelter some 4,000 million years microbial flora or wildlife ago, but this failed to stabilize their changing environment or adapt to change.

The theory solves a puzzle, said Professor Chopra: the universe abounds in wet and rocky planets, with ingredients and sources of energy to lead life. However, scientists do not have any indication of the possible presence of aliens on those planets.

as the light conditions and the distance from the host star, it was always the reference for astronomers to determine potential habitability a newly discovered planet, are not as important as previously thought. Its importance can not be compared with the rapid evolution in microorganisms of their ability to regulate the volatility surface.

Astronomers do not believe it is so difficult that there is life in other places. The problem has more to do with “feedback loops on planetary surfaces.” Once appeared, organisms or colonies die before someone from Earth becomes aware of his presence.

Over and over living conditions lead to all alien inhabitants of the population to the bottleneck situation, the authors summarize, going to a popular evolutionary model. Thus biologists describe the drastic declines in the number of members who suffer a population or species under the impact of a regional or global catastrophe.

As a result, copies of later generations to ‘neck bottle ‘have a low genetic variability if not completely disappear. According to the new theory, in most cases the bottle cap closed forever. / CLAA .