Extraterrestrials may inhabit underground oceans, making them unable to respond to human search signals.

According to astronomers, there are many subterranean oceans flowing beneath the rocks of the moons in the solar system, and it seems that such oceans are also quite common throughout the Milky Way.

Alan Stern, a physicist at NASA, believes that these subterranean “aquariums” are a perfect environment for life to thrive.

That’s good news for aliens.

2. Because extraterrestrials are trapped on “super-Earths”.

The gravitational attraction of super-Earths is so strong that extraterrestrials cannot escape.

In astronomy, the term “super-Earth” is used to refer to a type of planet with a mass 10 times greater than that of Earth.

Unfortunately, we probably will never meet these extraterrestrials.

3. Because aliens are robots, not blue creatures!

Yes!

Extraterrestrials are actually robots!

Humans invented the radio around 1900, built the first computer in 1945, and now we’re in the era of a range of compact devices capable of performing billions of calculations per second.

So are extraterrestrials, who are likely much more advanced than humanity.

“Any society (extraterrestrial) that invents radio so we can hear them, after a few centuries, will invent their successors… and those successors.

An extremely advanced extraterrestrial society may have entirely evolved into a society of superintelligent robots, which means we should be searching for extraterrestrials in a different direction.

4. As we may have already seen them, we are too puzzled and don’t recognize them!

Are we too reliant on Hollywood’s images of aliens?

Thanks to modern folklore, the image of aliens with human-like bodies and terribly large heads is likely ingrained in our minds.

The nearly predetermined human image of extraterrestrials: humanoid body, pale skin, fine skin, and a large bald head.

In a small study, the team asked 137 people to look at photographs of different planets and search for signs of what appeared to be extraterrestrials.

The team believes that, since extraterrestrials are not humanoid at all, they cannot even be identified through light or sound waves.

5. Because humans are “excavators” and extraterrestrials are “ants”

According to this theory, perhaps extraterrestrials were killed by humans.

Theoretical physicist Alexander Berezin points out that the more aggressively we search for extraterrestrials, the more likely we are to destroy them, even if unintentionally.

It’s possible that humans may have accidentally destroyed extraterrestrials.

Their reasoning goes like this: Any civilization capable of exploring the universe’s bounds wants to grow and expand limitlessly.

“I’m not saying that more advanced civilizations will intentionally destroy all other species.”

6. Because extraterrestrials are “karmic” in causing climate change

Are extraterrestrials role models for humans?

It’s possible that extraterrestrials have died due to climate change.

The more we grow, the more resources we consume that the planet can provide.

Astrophysicist Adam Frank has developed a series of mathematical models to examine the probability of a civilization growing or declining as it exploits and uses more and more available resources.

Only when society realizes the problem beforehand and immediately uses sustainable energy (i.e., does not overexploit or excessively use renewable planet), can civilization survive.

Frank’s theory seems to remind us and warn us about the extremely urgent current climate problem.

7. Because extraterrestrials are too… slow

Great ideas meet, yet another theory that extraterrestrial beings have perished because they evolved too slowly.

It’s possible that extraterrestrials perished because they didn’t adapt to the changes of the planet where they lived.

According to a 2016 study from the Australian National University, wet, solid-surfaced planets like Earth are very unstable during their early stages of life.

“faced with heat pulses, glaciations, unstable and out-of-control material transformations (e.g., greenhouse gases), sustaining life on a wet rocky planet for a long time. Your head behaves as if you are trying to mount a buffalo; most fall,” the

8. Because we and the extraterrestrials are “Romeo” and “Juliet”

This hypothesis suggests that there is a source of dark energy that is dividing galaxies.

the universe is expanding.

Dark energy is expanding the universe, and it’s possible we may never encounter extraterrestrial life.

“All we can do is ‘meet the deadline’ to find extraterrestrials and expand our civilization to other galaxies,” said Dan Hooper, an astrophysicist at the Fermi National Accelerator Laboratory in Illinois.

9. Shocking Twist: Because we are extraterrestrials!

Today, you just walk out the door and encounter an extraterrestrial.

We are extraterrestrials invading Earth!

And that’s a theory from astrobiology called “the panspermia hypothesis.”

Advocates of this theory argue that octopuses, tardigrades, and humans are creatures from other planets in the same galaxy.

So, do you believe in extraterrestrials, and what’s the most reasonable reason?