THE National Security Agency has warned that aliens could contact humans through high-frequency signals, as experts say “we’re not alone in the universe.”

A declassified document from the NSA titled “Communication with Extraterrestrial Intelligence” explains the various methods aliens could use to communicate.

A new NSA document claims 'we are not alone in the universe'

1

A new NSA document claims ‘we are not alone in the universe’Credit: Getty

One way extraterrestrial civilizations could reach out to humanity is through a signal with a frequency of 1420.405752 megacycles per second and a wavelength of 8.26 inches, according to the NSA.

Atomic hydrogen “permeates space in great clouds,” and has this radiation frequency, which can pass through earth’s atmosphere.

Advanced civilizations familiar with radio frequencies would likely understand this form of communication.

“We are not alone in the universe,” reads the NSA document. “A few years ago, this notion seemed farfetched; today, the existence of extraterrestrial intelligence is taken for granted by most scientists.”

Most read in The Sun

The NSA cites the National Academy of Sciences’ on-the-record opinion that contact with other civilizations “is no longer something beyond our dreams but a natural event in the history of mankind that will perhaps occur in the lifetime of many of us.”

The document also mentions renowned astronomer Sir Bernard Lovell’s calculation that at least 100 million stars in our galaxy can support organic evolution.

According to NASA’S Dr Su-Shu Huang, the closest solar system to ours, Alpha Centauri, has planets that are too young to host life.

However, solar systems that are about 111 light-years away from us such as Epsilon Eridani and Tau Ceti are potential candidates for harboring life.

“Nevertheless, if superior civilizations are abundant, the nearest would probably be at least 100 light-years away; therefore it would take 200 years for a reply to be forthcoming, a small matter of seven generations,” adds the NSA document.

Recently the Pentagon announced it would open a new office to investigate UFOs.

The dedicated unit is called the Anomaly Surveillance and Resolution Office (ARSO) and is designed to uncover and identify UFOs, some of which may be considered threats to national security.

Moreover, earlier this month scientists claimed to have spotted a planet capable of sustaining life.

They believe the planet is located in the so-called “habitable zone” of its Sun, meaning it’s not too cold nor too hot for life to thrive.

We pay for your stories!

Do you have a story for The US Sun team?

This post first appeared on Thesun.co.uk

You May Also Like

People are just realizing iPhone has hidden ‘fast charge’ – check your plug adapter right now

A LITTLE-KNOWN trick can help iPhone users charge their devices way faster.…

Weather rains over this week in Pokémon Go

POKÉMON Go is resting following the huge Elite Raids, and Togetic Community…

Lyrid meteor shower 2021 – Where to see fireballs streak across the sky tonight

THE LYRID meteor shower is set to peak tomorrow morning and you…

How to edit writing by a robot: a step-by-step guide

Commissioning GPT-3 was a fun – and strange – lesson in artificial…