The astronomer has figured out how to speed up a spaceship with black holes

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MOSCOW, 11 March – RIA news. The well-known planetologist David Kipping has understood how to use the attraction of pairs of black holes as a kind of "gravitational mirror" to accelerate the speed of the spacecraft towards light. His calculations have been published in the arXiv.org electronic library

"For the sake of simplicity, I call this acceleration technique a" radial motor ", since the ship increases speed due to the interaction with a ring of light that envelops a black hole: only the Milky Way has more than one hundred million black holes, which will be sufficient to create a dense "intragalactic network of such accelerators", writes the astronomer.

The possibilities of humanity in the exploration and study of the remote cosmos today are limited by a simple formula, which Konstantin Tsiolkovsky derived more than a century ago to calculate the amount of fuel needed for a rocket of a certain mass in the Earth's orbit or to fly to other worlds.

According to his calculations, for the development of the high speeds necessary for interstellar flights, it is necessary to have exorbitant fuel reserves, which the Earth will not be able to obtain either now or in the future. The reason for this is simple: they will be heavier than the mass of the Universe many times.

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Therefore, scientists have long sought to "reset" the most unfortunate part of this equation – to save a spacecraft from having to have fuel on board, or to learn how to extract it from the surrounding interstellar space. For example, in his role a rarefied gas, accelerated under the action of some physical forces, or a directional beam of light can act.

In recent decades, both fully functional engines that do not require large amounts of fuel, for example, ionic power plants and magnetoplasma, and more futuristic and simply questionable ideas such as the Breakthrough Starshot project of Russian entrepreneur Yuri Milner and the engine EmDrive that "violates" laws of physics.

All these ideas, as Kipping notes, have only one drawback: even if such installations can work indefinitely, they can only accelerate small objects at almost the speed of light necessary to build a real "interstellar civilization".

A way out of this situation was found in the mid-1960s by the famous Freeman Dyson, a British theoretical physicist and author of many concepts on how super-developed alien civilizations can appear. He noticed that a sufficiently strong spacecraft could "free" accelerate at the speed of near light, flying through a narrow pair of white dwarfs or neutron stars.

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Something similar, as Kipping discovered, can be achieved by using not two, but only one object – a black hole in the stellar mass, and for this reason it is not necessary to approach it and put yourself at risk.

The fact is that 25 years ago, theoretical physicists, who calculated the properties of space in the vicinity of black holes, noted that under certain circumstances they would not have absorbed matter, but rejected it. For example, a photon that moves along a well-defined trajectory and approaches the horizon of events at a certain angle will not intersect, but will reflect from it and return to the same point it comes from, rounding the object on the other side.

Considering the properties of these particles, the British planetary scientist has discovered that the light "boomerang" will not only return to its owner, but "steal" part of the energy from the black hole, from whose horizon will reflect the event .

This, he said, would be enough to accelerate a spacecraft with a mass from Jupiter at a speed that is about 1.4 times faster than a single black hole that moves around the center of the Galaxy. As a result, for double systems in which black holes can rotate one on the other only 3-5 times slower than the speed of light, this maneuver will allow you to achieve truly fantastic movement speed.

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In addition to accelerating the spacecraft, the same characteristic of black holes, like the notes of Kipping, can be used for other purposes: curb incoming spaceships, gravitational "extraction" of virtually infinite and free energy, or accumulate its surplus.

Certainly, for humanity, this idea remains sci-fi, but other more developed civilizations could already create such "halo-engines". Traces of their existence, according to the planetologist, can be seen from the high anomalous frequency of fusion and convergence of double black holes.

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