The extraterrestrials of the black hole "could use the GRAVITATIONAL WAVES to communicate" – SHOCK claim | Science | New

The launch of the European Space Agency (ESA) Laser Interferometer Spacecraft (LISA) is planned for 2034. The next-generation space instrument will be able to detect and measure gravitational waves – tiny ripples across the fabric of space-time. But a team of physicists shocked the scientific community by suggesting that LISA could simultaneously listen to messages broadcast by advanced extraterrestrial civilizations based on black holes.

LISA, the world's first spaceborne gravitational wave detector, is an ambitious and ambitious project consisting of three spacecraft, arranged in a triangle, at a distance of 2.5 million kilometers.

And researchers led by Professor Marek Abramowicz of the Swedish University of Gothenburg believe that changes in its operating procedures could allow LISA to play a central role in the discovery of the technologically advanced extraterrestrial civilization that lives in our galaxy.

Professor Abramowicz believes that a "rare combination of circumstances" in life on Earth means that similar constraints will limit the chances that another technically competent extraterrestrial life will occur.

However, the chance that extraterrestrial life is prospering somewhere is still possible. They therefore opt for a generous interpretation of the Drake equation – estimating the number of extraterrestrial societies communicating in the universe – suggesting that the Milky Way galaxy could accommodate a couple.

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And one last assumption is that at least one of the extraterrestrial companies will be much more technologically savvy than humanity.

Such an extraterrestrial society will better understand black holes, closely related to the production of gravitational waves.

Sagittarius A *, the supermassive black hole in the center of the Milky Way, is also, by definition, the center of the local star region – a place, says Professor Abramowicz, toward which any advanced extraterrestrial will naturally turn.

The researchers therefore suggest, by making some assumptions about extraterrestrial life and thought, right next to Sagittarius A * – on the innermost circular orbit of the hole is the ideal location to communicate with the rest of the galaxy.

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Sending a message using gravitational waves is the ideal way, because "once emitted, they travel in space virtually without being disturbed".

The authors wrote: "Gravitational wave phenomena are ubiquitous in the universe and possess sufficient technological prowess, relatively simple to detect."

The same ubiquity will be a kind of LISA detector.

The immense scale of LISA means that it will be able to detect gravitational waves coming from anywhere, in all directions.

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And LISA will not be limited to monitoring just one segment of the universe.

The researchers called this hypothetical extraterrestrial craft "The Messenger".

To be recognized as having a consciously shaped origin, they note, the gravitational waves they emit must be "unequivocally artificial".

Professor Abramowicz said: "To be recognized as such, a gravitational wave Messenger beacon must emit a manifestly abnormal signal, such as a persistent emission of constant frequency gravitational waves."

Of course, placing something near a black hole is an extremely dangerous plan.

Professor Abramowicz, however, assumes a considerable degree of technological prowess on the part of extraterrestrials.

Indeed, they suggest, sending a gravitational wave message may be only a secondary function of the craft.

The researchers write, "We affirm that if a sophisticated extraterrestrial civilization decided to build a device to study the huge black hole in the galactic center, or to extract energy from it, or even for unfathomable intentions for the planet. human mind, this device could also serve as a messenger.