Si vous êtes curieux de l'univers et de tous ses mystères, vous devriez regarder cette vidéo sur les mystères de l'espace non résolus que la science ne peut toujours pas expliquer. Des signaux étranges aux planètes bizarres, il y a tellement de choses que nous ne pouvons pas encore comprendre. C'est stupéfiant de penser à tout ce que nous ne savons toujours pas ! La vidéo explore certains des phénomènes les plus déroutants et cela vous fera certainement réfléchir. Que vous soyez passionné d'astronomie ou que vous aimiez simplement un bon mystère, c'est quelque chose que vous ne voulez pas manquer. Animation créée par Sympa.
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Musique par Epidemic Sound https://www.epidemicsound.com
Pour ne rien perdre de Sympa, abonnez-vous!: https://goo.gl/6E4Xna
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Nos réseaux sociaux :
Facebook: https://www.facebook.com/sympasympacom/
Instagram: https://www.instagram.com/sympa.officiel/
Stock de fichiers (photos, vidéos et autres):
https://www.depositphotos.com
https://www.shutterstock.com
https://www.eastnews.ru
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Si tu en veux encore plus, fais un tour ici:
http://sympa-sympa.com
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FunTranscript
00:00In April 2023, astronomers made a fascinating discovery.
00:06A black hole, fugitive.
00:08This one crosses the universe at a stupefying speed of 5,600,000 km per hour,
00:14which is about 4,500 times the speed of sound.
00:17This discovery was made by chance when researchers noticed a strange straight line in the images of the Hubble telescope.
00:24After an in-depth analysis, they understood that it was a moving black hole.
00:29The latter compresses the gases on its path, literally generating new stars along its trajectory.
00:35It thus leaves behind it a magnificent star chain that extends over 200,000 light years,
00:40which is the equivalent of the length of two Milky Ways.
00:43One of the ends of this star chain seems to be connected to a small distant galaxy,
00:49hence the black hole probably comes from.
00:51It is likely that two supermassive black holes were spinning around each other,
00:56until another galaxy, with its own supermassive black hole, arrives and ejects one of the two, hence its name of fugitive.
01:05It is possible that there is a ninth planet, nicknamed Planet 9, in our solar system.
01:11If this planet is real, it would be well beyond Pluto.
01:15Astronomers emit this hypothesis because of the unusual movements of some rocky objects close to Neptune,
01:22as if they were influenced by the gravity of an immense invisible planet.
01:25Planet 9 could be a gas or ice giant, with a mass seven times greater than that of Earth.
01:32According to one of the theories, it would have existed within our solar system before hitting a massive object
01:38that would have propelled it on an extremely long orbit around the sun.
01:43The discovery of this planet could revolutionize our understanding of the solar system.
01:47A new telescope, equipped with the largest digital camera ever designed,
01:52will begin its observations of the sky in 2025.
01:55Perhaps it will finally discover this mysterious planet.
01:58In 2023, another breathtaking discovery was made thanks to the James Webb Space Telescope,
02:04which identified more than 500 objects similar to planets in the Orion Nebula.
02:09Some of these objects have a mass comparable to that of Jupiter,
02:13and are called binary objects of Jupiterian mass, or jumbo for the faint-hearted.
02:20They float freely without stars, and are neither truly stars nor planets.
02:25Even more surprising, about 42 pairs of these objects orbit around each other,
02:31an unexpected behavior for planets.
02:34In addition, objects of this size should not normally form and exist without being linked to a star.
02:42Astronomers are trying to understand this phenomenon.
02:46Perhaps these jumbo formed in regions where the matter was enough to create large planetary objects,
02:52but not enough to form stars.
02:54Or were they all ejected from their stellar system?
02:57This mystery now requires a thorough study.
03:02The black hole located in the center of our galaxy, Sagittarius A,
03:06was in the past a particularly strange object.
03:11Fortunately, it did not escape as the other black hole mentioned earlier,
03:15but it presented singular behaviors.
03:18Astronomers have discovered two supermassive structures called Fermi balls and Erosita balls,
03:25which extend over about half the width of our galaxy and have dominated the Milky Way for more than 2 million years.
03:31Scientists estimate that it is our black hole that would be at the origin of these balls,
03:36having probably gone through a phase of maximum activity,
03:39with a spectacular energetic eruption that would have lasted about 100,000 years.
03:44This event would have left these huge balls.
03:49In 2023, the James Webb Space Telescope captured a remarkable and extremely detailed image of objects called Erbic Arrows,
03:57in particular those called Erbic Arrows 46-47.
04:01These objects are mainly made up of young stars surrounded by magnificent nebulae.
04:07We observe stars wrapped in a disk of matter that feeds them and supports their growth over millions of years.
04:14They are located at about 1470 light years.
04:18However, it is not really them that are drawing our attention.
04:22What is much more captivating is this strange object just below,
04:27a space structure that looks like a question mark.
04:31What is it?
04:33No one knows for sure.
04:35Its orange-red color suggests that it could be very far away,
04:39perhaps even billions of light years, far beyond our galaxy.
04:44Some think that this mysterious question mark could result from the fusion of two or more galaxies.
04:51One of them was probably a deformed spiral galaxy,
04:56hence its slightly curved shape,
04:58perhaps representing the tails torn by turning from one to the other.
05:03The other would have been smaller and rounder,
05:06resembling a classic spherical galaxy.
05:10Gravitational dynamics never cease to surprise us.
05:15Astronomers have begun their search for extraterrestrial megastructures.
05:19They believe that if an intelligent civilization exists somewhere,
05:23it could have built huge structures to feed their technology,
05:27like the Dyson spheres,
05:29hypothetical structures surrounding stars to capture their energy.
05:34By analyzing the historical data of telescopes that detect infrared signals,
05:39they have detected unusual signals that could indicate the presence of such structures.
05:44Currently, seven potential candidates have been identified,
05:48all coming from red dwarf stars,
05:50smaller, redder, and less massive than the Sun.
05:54Another research institute has found 53 other candidates.
05:58The exact cause of these signals remains uncertain.
06:02They could not be Dyson spheres,
06:04but large spatial debris.
06:09It seems that there are mysterious structures in the heart of our galaxy.
06:14In 2023,
06:15the James Webb Space Telescope captured a detailed image of the Sagittarius C region,
06:21located near the center of the Milky Way.
06:24This image revealed a dense area where stars are formed,
06:27with many young stars and dark clouds blocking the light of the stars behind.
06:33It is a place as crowded as chaotic,
06:35with about 500,000 stars of different ages,
06:38sizes and colors.
06:40Scientists are now studying it to better understand the formation of the stars.
06:44But what is really strange is that they have discovered something else.
06:48A vast region of ionized hydrogen,
06:51visible in science on the image.
06:53This area measures about 25 light years long and surrounds the lower part of a dense cloud.
06:59There also seem to be structures,
07:01shaped like needles,
07:02apparently arranged randomly,
07:05and astronomers have no idea what they are.
07:09They will therefore have to study this in more detail.
07:13Astronomers have discovered an extremely rare massive galaxy,
07:17called JWST 7329,
07:21and it is of impressive antiquity.
07:23Our universe is about 13.8 billion years old,
07:27but the stars of this galaxy seem to have formed about 13 billion years ago,
07:33or only 800 million years after the Big Bang.
07:37In addition, this venerable galaxy has a stellar mass four times larger than that of our current Milky Way.
07:44This strange discovery questions our knowledge of the formation of galaxies and the nature of dark matter.
07:51According to what we know, galaxies should not have formed so early.
07:56There should not have been enough dark matter for that.
08:00Yet it is the case.
08:02It is therefore possible that our models need to be revised.
08:07An incredible astronomical event,
08:09called AT 2021 LWX,
08:13and nicknamed Scary Barbie,
08:15took place.
08:16It was a flash of extremely bright energy that occurred on April 13, 2021.
08:21This is one of the most energetic events ever observed in space.
08:26There were no galaxies or quasars nearby.
08:30So what could have happened?
08:33Initially, astronomers thought that a supermassive black hole attracted a huge star.
08:39But after some research, they now believe that it could be due to a giant black hole,
08:45which would have swallowed a large amount of gas,
08:48perhaps a huge molecular cloud.
08:50This titanic black hole would have a mass between 100 million and a billion times that of the Sun.
08:56And it is one of the most massive and most active known black holes.
09:01Astronomers have found the oldest filament of the cosmic web ever observed.
09:06The cosmic web designates a huge structure of the universe
09:09made up of interconnected filaments of galaxies and dark matter.
09:14They act as an ossature for galaxies and other structures,
09:18playing a crucial role in their formation.
09:21The discovered filament is composed of 10 narrowly grouped galaxies
09:25and extends over more than 3 million light years.
09:28This filament is very old,
09:30as it would have appeared only 830 million years after the Big Bang,
09:35probably anchored by a luminous quasar.
09:38This discovery pushes us to reconsider the way galaxies are formed
09:42and to reflect on what happened in our universe after the Big Bang.