A giant radio telescope in China was caught repeating the signal from deep space
Source:Who or what sends mysterious radio signals?
We envision the space as dark, cool and quiet place where there is nothing but the infinite Universe around. However, what about the silence of space is debatable. Throughout the Universe are thousands of different radio signals. They emit various space objects and most of these signals — is nothing more than noise and interference. But there are among them those attributed to interference does not work. And have recently experienced a huge Chinese radio telescope.
How got a signal from outer space?
A Few years ago, China built and launched into operation pjatisotmetrovyj aperture spherical radio telescope (FAST). Since then, a team of scientists began to scan the space on the subject of «be something unusual», and that «something» not so long ago managed to fix. And fast radio bursts.
Fast radio bursts (FRB) is a single lasting a few milliseconds of unknown origin, recorded by radio telescopes. Typical energy bursts, according to some estimates, is equivalent to the emission into space of the energy emitted by the Sun within a few tens of thousands of years. And fast radio bursts, — pretty «young» phenomenon. They were first discovered only in 2007 and their origin is still unknown.
Chinese FAST radio telescope. He once again recorded an unusual signal
However, this would not be news, because after the first detection of radio bursts, scientists began to record them permanently. Each burst is recorded and assigned a number. And here begins the most interesting. The fact that the signal detected by the radio telescope FAST, scientists have already recorded. In 2012, the Arecibo Observatory in Puerto Rico was found the burst, which is designated as FRB 121102. Since then in Arecibo and it was fixed several times, and now FRB 121102 was caught by the Chinese astronomers.
I do not claim that this radiuspack — the handiwork of extraterrestrials. I just think it's amazing that in space there is something like that — said astrophysicist Siggi Planes from McGill University in an interview with ScienceAlert. However, I think that the signature of the burst can be encoded very important information that we must attempt to decipher.
radiation storms — is it aliens?
The Exact answer at the moment, but all available evidence indicates that it can be quite normal natural phenomenon. If scientists will be able to find something, we will immediately inform you. And in order not to miss — . For example, a radio telescope FAST is particularly sensitive to radio signals in the frequency range from 1.05 to 1.45 GHz, making it ideal for observation of FRB 121102. And , the better our chances that we will be able to determine exactly what the surge is, to find out its nature and origin. One theory is that the radio bursts are formed by the decay of neutron stars.
Another hypothesis assumes that different frequency radio bursts which have actually different reasons. For example, some stars (like our Sun but many times larger) able to emit radio waves. However, none of the existing theories do not explain why some bursts were sort of FRB 121102 are regularly repeated on the same frequencies and do not change their signature with time. The mystery scientists have yet to unravel.
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