The extraterrestrials already know that we are here. Airports denounce us

by Andrea
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The Russian electronic defense shield “is a disaster full of holes”

The extraterrestrials already know that we are here. Airports denounce us

(If they exist, of course, and if they have the necessary technology and to be present up to 200 light years away), “they” know of our existence, guarantees a new study.

We do not know if they exist, but they – if they really exist – already know that we exist, according to a study recently presented at the National Astronomical Society Astronomical Astronomy Meeting in Durham.

Are the airports (or, more specifically, its radar) who denounce the presence of the earth and its wonderful inhabitants to any extraterrestrial civilizations, the authors say.

The signs of radar issued by large airports are spreading in space, an effect that has now been simulated by researchers at the University of Manchester, according to a statement from.

The team analyzed the visibility of these signs from nearby stars, such as Barnard dwarf and young Au Microscopii, and concluded that combined emissions from civil aviation radars reach 2×10¹⁵ watts – Enough power to be detected up to 200 light years away By radiotlescopes as sensitive as the Green Bank observatory, located in the US.

As a comparison, scientists evoke close centauri B, which is the potentially habitable exoplanet closest to the earth: it is only 4 light years. But with current technology, it would take thousands of years to get there.

Signs of military radar would seem artificial

In addition to civil radars, researchers have analyzed military radar systems, which emit more concentrated and directional signals. In addition, they create unique patterns, similar to a spinning light beam, with accumulated peak emissions of about 1 × 10¹⁴ watts.

Ramiro caisse saidemain author do, explains that these emissions would seem artificial to distant and equipped observers with powerful radiotlescopes.

Signs of radar “can function as universal signs of intelligent life,” says the author, who explains that the work aims to guide the (so far) insatious seeking extraterrestrial life through the identification of technoSinatures.

Tomás Guimarães, Zap //

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