The human mind can’t grasp how big the universe is.
It is estimated that in the Milky Way alone, there are up to 40 billion Earth-sized planets sitting within the habitable zone (where it would be not too hot or cold for liquid water to exist), and the Milky Way is believed to be one of 100 billion galaxies in the universe.
NASA is developing new projects in order to search the known universe for ‘technosignatures’ that could give away advanced alien civilizations.
The Space agency hopes that massive structures and even pollution could reveal extraterrestrial activity outside our solar system.
NASA hopes to come across technosignatures from elsewhere in the cosmos. These signatures could reveal the location of Alien civilization and here on Earth, we would intercept them as radio signals or emission caused by alien activity.
In order to develop new means, the Space Agency will be hosting technosignatures Workshop in order to address various areas in the field, and discuss possible investments.
“Technosignatures are signs or signals, which if observed, would allow us to infer the existence of technological life elsewhere in the universe,” NASA explains.
“The best-known technosignatures are radio signals, but there are many others that have not been explored fully.”
However, even if we were to intercept signals, and we already have, how will we know if they really come from aliens?
FRB’s traces of alien life?
In September 2018, an Alien-hunting AI discovered dozens of mysterious fast radio bursts coming from deep space.
Fast radio bursts, aka FRBs, are bright pulses of radio emission, lasting just milliseconds. They’re thought to originate in distant galaxies, but their exact origin and cause remain a profound mystery.
Earlier studies had considered whether FRB’s may be traces of advanced alien technologies.
A study published by Harvard scientists discussed in September of 2017 whether FRBs could be caused by Advanced Alien Spaceships.
“Fast radio bursts are exceedingly bright given their short duration and origin at great distances, and we haven’t identified a possible natural source with any confidence,” said theorist Avi Loeb of the Harvard-Smithsonian Center for Astrophysics.
“An artificial origin is worth contemplating and checking.”
All of this leads us to wonder whether we may have already intercepted, unknowingly signals caused by alien activity.
NASA explains that it will start looking for technosignatures, and these could be radio or laser emissions, for example, or even an atmosphere full of pollutants, NASA explains.
“Complex life may evolve into cognitive systems that can employ technology in ways that may be observable,” NASA’s 2015 Astrobiology Strategy states.
“Nobody knows the probability, but we know that it is not zero.”
“NASA will continue assessing promising current efforts of research in technosignatures and investigating where investments could be made to advance the science,” the agency wrote.
“Although we have yet to find signs of extraterrestrial life, NASA is amplifying exploring the solar system and beyond to help humanity answer whether we are alone in the universe.”