If you're curious about the universe and all its mysteries, you should check out this video on unsolved space mysteries that science still can't explain. From strange signals to bizarre planets, there are so many things out there that we just can't figure out yet. It's mind-blowing to think about how much we still don't know! The video dives into some of the most puzzling phenomena, and it'll definitely get you thinking. Whether you're into astronomy or just love a good mystery, this is something you don’t want to miss.
00:00In April 2023, astronomers found something exciting, a runaway black hole.
00:07This thing is moving through the universe at an incredible speed, about 3.5 million miles per hour.
00:14It's 4.5 thousand times faster than the speed of sound.
00:18They found it accidentally.
00:21Researchers noticed that there was some weird straight line in Hubble images.
00:25After some digging, they realized there was a moving black hole.
00:30As it moves, it compresses the gas on its path, literally creating new stars along its journey.
00:37So, it's leaving a beautiful, long trail of stars behind it.
00:41And when I say long, I mean it.
00:44Its tail is 200,000 light years long, which is like the length of two Milky Ways.
00:50Turns out, one end of this star trail connects to a distant small galaxy.
00:55This is probably where the black hole came from.
00:57Most likely, there were two supermassive black holes whirling around each other.
01:02And then, another galaxy came along with its own supermassive black hole and ejected one of the original ones like a mean kid, which is why it's called runaway.
01:11There might be a ninth planet with the very original name, Planet 9, in our solar system.
01:19If it exists, it's probably somewhere far beyond Pluto.
01:23Astronomers think so because some rocky objects near Neptune move in a weird way as if they were influenced by the gravity of a large, unseen planet.
01:33Planet 9 might be a gas or ice giant, seven times the mass of Earth.
01:38One of the ideas is that it could have existed in our solar system, but then bumped into something huge and ended up with a crazy long orbit around our sun.
01:49If we actually discover it, it could change our understanding of the solar system.
01:53A new telescope is coming soon, equipped with the largest digital camera ever built, and it will start scanning the sky in 2025.
02:03Maybe it will finally spot this mysterious planet.
02:06Another awesome discovery was made in 2023.
02:11The James Webb Space Telescope found over 500 planet-like objects in the Orion Nebula.
02:18Some of them are roughly the mass of Jupiter, so they're literally called Jupiter-mass binary objects, or jumbos.
02:26They just float out there with no stars, and they're not really stars or planets themselves.
02:31What's even crazier is that in about 42 pairs of them, the objects are orbiting each other, even though planets aren't supposed to do that.
02:40On top of that, such large objects shouldn't form and exist without a star at all.
02:46So now, astronomers are trying to explain this.
02:49Perhaps jumbos have formed in places where there was enough stuff for big planet-like objects, but not enough for stars?
02:56Or maybe all of them were ejected from their star systems for some reason.
03:01Who knows?
03:02But now, we definitely need to study them.
03:06The black hole in the center of our galaxy, Sagittarius A star, used to be super weird.
03:13Luckily, it didn't run away like that other one, but it was completely crazy in the past.
03:18Astronomers found two supermassive structures called the Fermi bubbles and Erosita bubbles.
03:25They spanned about half the width of our entire galaxy, and they've been towering over the Milky Way for over 2 million years now.
03:34And scientists think that it's our black hole that created them.
03:37It seems like when it was at its peak activity, it had a wild energetic eruption that lasted about 100,000 years.
03:45This event probably left these bubbles.
03:47In 2023, the James Webb Space Telescope took a striking, super-detailed image of the so-called Herbig Haro objects.
03:58These objects are called Herbig Haro 46-47.
04:02They're basically young stars surrounded by beautiful patches of nebulosity.
04:07You can see the stars being surrounded by a disk of material that feeds them as they grow for millions of years.
04:15They're located at about 1,470 light-years away, but they're actually not our main topic of discussion.
04:23What's much more interesting is this weird thing right below them, a space structure that looks like a question mark.
04:30What is this thing?
04:32No one knows for sure.
04:34It has an orange-red color, which hints that it might be super-distant.
04:38Far from our galaxy, maybe even billions of light-years away.
04:43Some think that this strange question mark is probably the result of two or more galaxies merging together.
04:50One of them was a bit curved, so it's probably a distorted spiral galaxy.
04:54The curve might be the tails being stripped off as they spiraled towards each other.
05:00The other one was rounder and smaller like a regular spherical one.
05:05The gravity games never fail to amaze us.
05:09Astronomers started searching for extraterrestrial megastructures.
05:13They think that if there's another intelligent civilization out there,
05:17they could have built something incredibly huge to power their technology.
05:21For example, like Dyson spheres.
05:24Hypothetical structures around stars that use the star's energy as fuel.
05:30Astronomers analyzed some historical telescope data that detects infrared signals.
05:35They spotted some weird signals that could hint at the presence of these structures.
05:40In total, there are seven such candidates right now.
05:44All of them are coming from red dwarf stars, which are redder, smaller, and less massive than the sun.
05:50Another research institute found 53 potential candidates.
05:55They're still not sure what exactly causes these signals, but it could be not Dyson spheres, but some huge debris.
06:02It looks like there are some mysterious structures in the center of our galaxy.
06:07In 2023, the James Webb Space Telescope has taken a detailed picture of the Sagittarius C region.
06:14It's right near the center of the Milky Way.
06:17This image showed a dense area where stars are forming.
06:21There were many young stars and dark clouds that blocked the light from the stars behind them.
06:26That's a very packed place, with about 500,000 stars of different ages, sizes, and colors.
06:34This place is very chaotic and extreme.
06:37Now, scientists are using it to study star formation.
06:41But the weird part is that they noticed something else.
06:44The large region of ionized hydrogen.
06:47It looks like cyan in the image.
06:49This area is about 25 light-years long, surrounding the lower side of dense cloud.
06:56And it looks like there are some needle-like structures.
07:00They seem to be located randomly, and astronomers have no idea what they are.
07:05So now, they have to study this in more detail.
07:09Astronomers have found a super-rare, massive galaxy.
07:13It's called JWST 7329, and it's absolutely ancient.
07:19Our entire universe is about 13.8 billion years old.
07:24But the stars in this galaxy seem to have formed around 13 billion years ago.
07:29So just around 800 million years after the Big Bang.
07:33Also, this venerable elder has four times more mass in stars than our Milky Way does today.
07:40This strange discovery challenges what we know about galaxy formation and the nature of dark matter.
07:47Everything we know tells us that galaxies shouldn't have formed so early.
07:52There shouldn't have been enough dark matter for that.
07:55But here we are.
07:57So, perhaps our models need some revision.
07:59There was an incredible astronomical event called AT-2021 LWX, which is also called Scary Barbie.
08:10It was an unbelievably bright burst of energy that happened on April 13, 2021.
08:16It's one of the most energetic space events ever observed.
08:19No galaxies or quasars were nearby.
08:23So what in the world happened?
08:25At first, astronomers thought that it was caused by a supermassive black hole pulling in a massive star.
08:33But after some studying, they think it's probably because a giant black hole had some crazy dinner.
08:39It probably ate a large amount of gas, possibly a giant molecular cloud.
08:45The titanic black hole in question is between 100 million and a billion times the mass of the Sun.
08:52This is one of the most massive known and active black holes.
08:58Astronomers found the oldest strand of the cosmic web ever seen.
09:02The cosmic web is what we call a huge structure of the universe that's made of interconnected filaments of galaxies and dark matter.
09:11They're like a framework for galaxies and other structures, playing a crucial role in their formation.
09:17The filament we're talking about is made up of 10 closely packed galaxies.
09:21It's unimaginably huge, stretching over 3 million light years.
09:26And it looks like the newly discovered strand is very ancient.
09:30It occurred only 830 million years after the Big Bang.
09:35It's probably anchored by a luminous quasar.
09:39This discovery makes us question how exactly galaxies are formed
09:43and what exactly happened to our universe after the Big Bang.
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