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After searching 1000 of galaxies, scientists confirmed that 50 galaxies are emitting the high level of radiation. That means alien civilizations could be attempting to communicate with them.

Though it is not easy to search life beyond the solar system. But astronomers said advanced alien life is possible in 50 galaxies.

Are They Trying To Reach Us?

Now, here one question may arise that how they do communicate? The scientists said that aliens could be attempting to communicate with them, using extremely advanced neutrino-based communication systems. But at the same time they unable to detect it, Daily Caller reported.

What Are The Ways Of Communication?

There are two types of scientific searches, one is SETI (Search for Extra-Terrestrial Intelligence) and another one is METI (Messaging Extraterrestrial Intelligence). SETI deals with searching for messages from aliens and METI science deals with the creation of messages to aliens, Phys.org reported.

A previous study said that SETI radio astronomy survey used radio waves for locating alien civilization. But now, scientists suspect that an aliens would likely use a perfect and specialized medium of communication.

In addition, METI looks for ways in which experts might be able to contact aliens instead of waiting to hear from them. But still, it requires a medium exist with which to convey the message.

What Is Neutrino Based Communication System?

A neutrino-based communication system is one of the ideal potentials methods to communicate with an extraterrestrial civilization. It is one type of subatomic particle that is produced by the decay of radioactive elements and interacts with matter very weakly.

Where Are They?

However, it allows them to pass through solid matter. It can be detectable only with extremely specialized equipment that SETI hasn't used to search for aliens yet. Moreover, a neutrino-based communication offers a potential solution to the Fermi paradox. Now, another question arises - why scientists have not detected aliens yet?

According to a SETI analyst Dr. Morris Jones, "SETI practitioners spend a lot of time wondering how a message would be encoded in terms of language and content". Not only that, SETI searches for advanced alien looked for radio emissions, not neutrinos. This may offer a solution to the paradox.

However, a recent news suggested that alien civilization could still use fast radio bursts (FRB) to communicate. The researchers can not decode the mysterious signal from deep space.

The FRB is actually a long pulse of radio light origination from deep space. Now, researchers believe that these FRB could be evidence of advanced alien technology. These signals are roughly one billion times more luminous than anything ever detected in Milky Way galaxy.