Aliens may have Existed On Earth. Here’s Why They Left

 

It is one of humanity's most consuming questions, fascinating scientists, governments and 

pop culture alike. But now, an American space scientist claims that advanced life forms 

could be a reality, but that they disappeared long ago.

Professor Jason Wright, professor of astronomy and astrophysics at Pennsylvania State 

University, has published an article on arXiv entitled "Previous indigenous technological 

species".

He claims that ancient "technological species" may have lived on Earth billions of years 

before the human race. Well, either the Earth, or a "pre-greenhouse Venus", or "a wet Mars". 

It is not 100% secure.

However, Wright says:

Since it is known to host a complex life, the most obvious origin for a previous species of 

any kind is Earth.

He does not punch when he explains that:

Today's Venus would seem a terrible candidate for a technological species, with a surface 

temperature of over 700K, although when it comes to alien life we ​​should keep an open mind 

on this too.

Wright believes that ancient species have disappeared, but that in the past we could have 

found traces of them underground, called "tecnosignature". However, he says that most of the 

physical evidence would have been lost.

On Venus, for example, the global arrival of the greenhouse could have caused a re-emergence 

of the planet, while on Earth the movement of the tectonic plates and the subsequent erosion 

could have canceled any persistent traces. However, he writes, it may still be possible to 

recognize these techno-markings even if the physical evidence is almost destroyed.

He explains:

Structures buried under surfaces could survive and be discovered as long as they do not 

undergo a collision so severe as to destroy their artificial nature. Destroying them would 

simply make them non-functional, but they could still be recognizable technological. We could 

speculate that settlements or bases on these objects would have been built below the surface 

for a variety of reasons, and that therefore they are still discovered today.

He claims that ancient "technological species" may have lived on Earth billions of years 

before the human race. Well, either the Earth, or a "pre-greenhouse Venus", or "a wet Mars". 

It is not 100% secure.

However, Wright says:

Since it is known to host a complex life, the most obvious origin for an earlier species of 

any kind is Earth.

He does not punch when he explains that:

Today's Venus would seem a terrible candidate for a technological species, with a surface 

temperature of over 700K, although when it comes to alien life we ​​should keep an open mind on 

this too.

Wright believes that ancient species have disappeared, but that in the past we could have 

found traces of them underground, called "tecnosignature". However, he says that most of the 

physical evidence would have been lost.

On Venus, for example, the global arrival of the greenhouse could have caused a re-emergence 

of the planet, while on Earth the movement of the tectonic plates and the subsequent erosion 

could have canceled any persistent traces. However, he writes, it may still be possible to 

recognize these techno-markings even if the physical evidence is almost destroyed.

He explains:

Structures buried under surfaces could survive and be discovered as long as they do not 

undergo a collision so serious as to destroy their artificial nature. Destroying them would 

simply make them non-functional, but they could still be recognizable technological. We could 

speculate that settlements or bases on these objects would have been built below the surface 

for a variety of reasons, and that therefore they are still discovered today.