Scientists are even keen to find an answer to the fact that while there are zillions of planets in the universe - of which nearly 9 billion are potentially inhabitable in our own galaxy alone - we have yet to make any (confirmed) contact with extraterrestrial civilizations. !

A few days ago, we even talked here at Mega Curioso about a recent study on this topic. Researchers at Cornell University in the United States have basically proposed that we have not obtained any response from the signals we send into space because these signals have not gone far enough in our galaxy and therefore have not yet reached any alien civilizations. Now another group of scientists has suggested a far more dire scenario.

Universal necropolis

According to Joshua A. Krisch of the Vocativ portal, a pair of researchers from the National University of Australia propose that the standard of living in the cosmos is that it does not exist for a very long time and is becoming extinct - which in In other words, it means that the universe is full of dead aliens, so we have not been able to make contact with anyone until now.

It's the fault of evolution

In fact, according to scientists, aliens have not even been able to live long enough to evolve to become multicellular organisms - which will say to the point that they can develop communication technologies or travel through the cosmos. To reach this conclusion, the researchers relied on a concept known as the Gaia Hypothesis, more precisely on the idea that unicellular beings are responsible for regulating their planets and making them habitable.

Earth, for example, in the early days of its existence relied on the action of unicellular microorganisms that turned it into a stable planet and laid the foundation for the development of more complex life forms billions of years later. So if these unicellular beings had been slow to come on the scene, the fate of our world could have been quite different - and it would look like Venus or Mars now.

Dark cosmos

Scientists believe it can be extremely rare for unicellular life forms to emerge on planets in time to make them stable, even when these stars are in the habitable zones of their stars.

The planets end up not becoming habitable

This means that even if an organism originates in an alien world, it will hardly evolve fast enough to regulate the greenhouse gases present in the atmosphere and thus maintain surface temperatures compatible with the existence of water in its form. net.

As such, we Terrans have not been able to make contact with extraterrestrial civilizations until now because most aliens have died before they could evolve and transform their planets into stable environments conducive to the development of complex life forms.