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Un phénomène fascinant dans l'espace attire l'attention des chercheurs : un signal radio mystérieux qui revient toutes les 22 minutes, comme une horloge cosmique. Découvrez ce que cela pourrait signifier pour notre compréhension de l'univers et plongez dans cette aventure pleine de surprises !

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00:01We are still not able to find the origin of the mysterious signal that comes from 2018.
00:08We receive it every 22 minutes, and nothing can explain it.
00:12Some scientists think it could even come from an extraterrestrial civilization that we have not yet encountered.
00:25This radio strange signal has not been discovered by a researcher during a serious mission.
00:30To be honest, he was noticed by a student who worked simply on a ordinary project in the field of
00:35his studies.
00:36Tyrone O'Doherty, a student of the first cycle at the University Curtin of Australia,
00:41passed in review of the old data of the voodoo austral.
00:43He looked at various signals radio-intermittent when he finally fell on a signal datant of 2018
00:49and seemed to emit a radio signal in the direction of the Earth like a phare.
00:55Enthousiasmé by his discovery, Tyrone shared it with his mentor,
00:59the radio astronomer Natasha Hurley-Walker.
01:02She found this signal in the search of this signal, in case of a scientific error.
01:06But in spite of the different frequencies, they have reached an impasse.
01:10It's at this moment that Walker has deceled a certain schéma.
01:13The signal repeated all the 18 minutes.
01:16It was enormous.
01:17But at the moment where he prepared to study it more detail,
01:21the signal disappeared after only 3 months, no letting no trace.
01:26Refusant to baise their arms, Walker and his team have again scrutin the ciel,
01:31hoping to find an indication.
01:32The months have passed, but nothing has been discovered.
01:35They were close to abandon it.
01:37When, suddenly, a new signal was manifested.
01:40It continued to repeat for 5 minutes.
01:43Then, he disappeared, before appearing exactly 22 minutes later.
01:48The big question was to know if this signal was linked to the previous signal of 18 minutes.
01:53And, to discover it, the Dr. Hurley-Walker went into the old radio radio data.
01:58As soon as they were digging, they realized that, these signals were not new.
02:04They had been sent in the direction of the Earth for 35 years.
02:08The Indian and American telescopes had already seen in 1988,
02:12but they had been ignored by the amount of other information.
02:16It was an excellent news for the astronomers,
02:18because it meant that they could now calculate the distance
02:22which separated from this mysterious object.
02:24After having realized, they found out that he was incredibly far away,
02:28even at the cosmos.
02:29He was at 15.000 years later on Earth.
02:32At present, the only thing that they remained to discover
02:35was the precise nature of this object.
02:37Walker and his team have begun to compare it to all the emitters known to radio radio.
02:42However, its source was a mystery.
02:44The signals continued to appear all 22 minutes on the screens of NASA,
02:48as always concluding by the frustrating message,
02:52there was no correspondence found.
02:53The scientists called it J.I. 839-10.
02:59Some believe that this signal could come from an extraterrestrial people.
03:04Maybe it is the signal that the SETI program research forms of intelligence
03:08is waiting for so long.
03:09This project operates for more than 50 years
03:12and tries to bring proof of the existence of a life beyond our planet.
03:15They also scrutent the SETI in the case of radio radio waves,
03:19laser waves and other mysterious signals.
03:22So, maybe it is a way for the extraterrestrial
03:25to communicate their displacement.
03:29Even if all this could seem exciting,
03:31we have to keep ourselves in order to take a few conclusions.
03:34To start, we have no tangible proof.
03:37In the absence of concrete proofs,
03:39all this is only speculation.
03:41And then, there are other explanations more plausible.
03:44The most likely is that this signal comes from a natural phenomenon.
03:48And there are some theories on this subject.
03:51The first theory is that of the pulsar.
03:54Imagine a huge star in space,
03:57even bigger than our Soleil.
03:59Sometimes, these large stars
04:00achieve their lives during a spectacular event
04:03called Supernova.
04:05When this happens,
04:06the star star star falls on itself,
04:08becoming incredibly compact,
04:10as if you compress all the content of this star star
04:13in an infinite space.
04:14This star star minuscule and extremely dense
04:16is what we call a neutron star.
04:20Some of these neutron stars are very particular.
04:23We call them pulsars.
04:25They take their names
04:25because they seem to be pulsed energy,
04:27like the phares in space.
04:29These pulsars possesses
04:30magnetic fields incredibly powerful,
04:33even more than what we would find on Earth.
04:35They are like huge amounts of cosmos.
04:38And, because of that,
04:40they project energy vessels.
04:41They also turn very quickly,
04:43so that these vessels vessels
04:44seem to clignote as soon as they turn.
04:48That said,
04:49the strange signal
04:50that we detected
04:50seems to have some similarities
04:52with the pulsars.
04:53But it's not at all that.
04:55The pulsars have a generally
04:56duration of life
04:57expected.
04:58They slow down during the time
05:00and end up stopping
05:01their radio signals.
05:02However,
05:03our mysterious signal
05:04seems quite persistent
05:06and clignote
05:06beyond the hope of life
05:08expected of a pulsar.
05:11Maybe it's not just a pulsar
05:13typical,
05:14or not a pulsar at all.
05:16There is also the theory
05:17of magnetar.
05:18A magnetar
05:19is another type of stars
05:20to neutrons.
05:21They are like
05:22the versions of the pulsars
05:24with the magnetic fields
05:26even more powerful
05:26and the periods
05:27of pulsations
05:28slightly longer.
05:29Maybe it's the cause
05:30of our signal?
05:32However,
05:33when we examined these data,
05:35we realized
05:35that the signal
05:36does not correspond
05:37to the pulsations
05:38of a magnetar.
05:40These magnetars
05:41emit not only
05:41radio signals,
05:43but also
05:43powerful rayons X
05:44because they are
05:45very charged in energy.
05:46But the signal
05:47that we received
05:48was only radio signals.
05:53We have therefore
05:54said that it was not
05:56a pulsar
05:56nor a magnetar.
05:57The signal
05:58is strange
05:59and suggests
06:00a non-natural source.
06:02This means
06:03that there could be
06:04something in the universe
06:05that the scientists
06:05have not yet fully understood.
06:08And there is finally
06:09a space body
06:10on which we do not know
06:11anything.
06:12The last theory
06:13is the
06:13pulsar nain.
06:15A pulsar nain
06:16is a star
06:16which emet
06:17regular lightning
06:19similar to a pulsar
06:21but which takes
06:22a lot more time
06:22between each pulsation.
06:24Usually
06:24the white nains
06:25are formed
06:26of small stars.
06:27They do not lightning
06:28because their
06:29magnetic field
06:30is not as powerful
06:31as the pulsars.
06:32But when
06:33a white nain
06:34becomes quite
06:35thick
06:35to reach the mass
06:37of our sun
06:37becomes extremely dense
06:39and begins to pulse
06:40because of its
06:41force magnetic field
06:42like the last one.
06:44They have a interesting
06:45particularity
06:45interesting.
06:46The white nains
06:47are made
06:48of electrons
06:48and not of neutrons
06:49which is the case
06:50of the pulsars.
06:51When these electrons
06:52begin to dance
06:54with the magnetic field
06:55they emit
06:56rays of periodic light
06:57which
06:58are produced
06:59every 100
06:59to 1000 seconds.
07:01As you remember
07:02our signal
07:03has a period
07:04of 22 minutes
07:05so 1320 seconds.
07:07It's a little longer
07:08than the pulsars
07:09nains
07:09ordinary blancs
07:10but it's what seems
07:11the most close to the truth.
07:13Until now
07:13it seems to be
07:14the most plausible explanation
07:16but even
07:17this theory
07:17is not yet
07:18at all confirmed.
07:19It shows
07:20how many
07:21of the universe
07:22still remains
07:22to discover.
07:26like
07:26the rapid radio
07:27or FRB
07:29for example
07:29another type
07:30of mysterious signals
07:31that we have detected.
07:33These are
07:33like
07:34rapid and intense
07:35energy
07:35in the form of radio
07:37and they receive
07:38a lot of energy.
07:40The FRB
07:41are so powerful
07:41that they can sometimes
07:42brilliantly
07:43as well
07:43as entire galaxies
07:45imagine this.
07:47They emit
07:48as much
07:48as
07:48as
07:49as
07:49as
07:50as
07:50we see
07:50Earth
07:51in three days
07:51that the
07:54Earth
07:54Earth
07:54as
07:54as
07:56as
07:57as
07:57as
07:57as
07:57as
07:58as
08:19less than a portable phone signal from the moon.
08:24That's why, in spite of their luminosity, there are still a lot of things that we don't
08:29understand their subject. We always try to understand what these FRB cause.
08:34They could come from different sources, like the magnetars mentioned earlier,
08:38stars entering in collision, or even the galaxies fusioning between them, or white.
08:45While these bursts travel into space, they accumulate information on the cosmic environment
08:50they traverse, such as the waves of interstellar.
08:54However, it is very likely that the FRB are sent messages sent by extraterrestrial entities.
09:00Not only because there are thousands every day, everywhere in the sky, but also because we know
09:06that the source of these explosions will be able to receive a lot of energy.
09:10Our neighbors should have more powerful equipment than the entire galaxies.
09:15But the fact is that, even though these signals are fascinating,
09:18there are still a lot to learn about their subject.
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