The Mystery of Laniakea: What does our Gigantic Supercluster of Universes hide? | Space Documentary

🌍 Have you ever taken the time to contemplate the architecture of the supercluster of galaxies in which we live?

We live on Earth. Earth is the third planet from the Sun. It belongs to the solar system. The solar system lies within the Milky Way, which in turn lies within the Local Group, which contains over fifty galaxies and extends over some 10 million light-years. The Local Group lies on the periphery of the Virgo Cluster, a cluster containing over a thousand galaxies 60 million light-years away. It represents a small part of the Local Supercluster, a region around 100 million light-years across containing several hundred galaxy clusters.

A galaxy is a vast collection of gravitationally-bound stars, dust and interstellar gas. Galaxies come in all shapes and sizes, from 2,000 to 500,000 light-years in diameter. Until recently, the Local Supercluster was considered the last line of our cosmic address. But today, we know that we belong to a collection of several galaxy clusters that are gravitationally linked to each other. Laniakea is the supercluster in which our own galaxy, the Milky Way, and thousands of other galaxies lie, stretching over a diameter of around 520 million light-years.

How can we go from a simple grouping of stars to a gigantic structure over 500 million light-years in diameter? And what does this Laniakea supercluster look like?

🔥 As a reminder, videos are published on SUNDAYS at 6pm.

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💥 What does the Laniakea supercluster look like? :
- The Hubble Space Telescope is making fantastic discoveries in the field of astronomy. Operational since 1990, it is equipped with a large mirror, 2.4 metres in diameter, which enables it to reproduce images with an angular resolution of less than 0.1 arcsecond.

Among other things, this telescope has uncovered galactic clusters billions of light-years away. These are spiral and even irregular galaxies that are no longer counted today.

The trend towards galaxy association is not limited to the Mpc scale. The Local Group, our group of galaxies, forms an immense structure with others in the Virgo Cluster. It's a vast, flat expanse with a small central bulge, known as the Local supercluster. A dozen superclusters are listed on the three-dimensional map of the observable Universe. Among the closest are the Hydra-Centaur, the Hair of Berenice and Perseus-Fish. The largest visible structure in the Universe is the gigantic Sloan Great Wall cluster. This cosmic structure forming a giant wall of galaxies is 1.38 billion light-years long and lies a billion light-years from us. The Great Sloan Wall is about 1/60th the diameter of the observable Universe. It contains several superclusters of galaxies.
The superstructure of the cosmos that interests us today is none other than the supercluster of galaxies that shelters us. It is called Laniakea.

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🎬 Today's program:
00:00 - Introduction
02:30 - The formation of galaxies
03:07 - The birth of galaxies
05:22 - Presentation of the different galaxies
10:21 - Galactic clusters
15:57 - What is Laniakea?
16:35 - Composition of Laniakea
21:05 - Discovering Laniakea
25:27 - Journey through Laniakea
25:47 - The Great Attractor
28:21 - The Milky Way
32:15 - Interstellar gas: essential for galaxy evolution
36:59 - Other components of the Milky Way's interstellar medium
39:26 - The arms of the Milky Way
40:26 - Arm of Perseus
40:46 - Crab Nebula M1
44:03 - Centaur arm
44:48 - Ruler-Swan Arm
45:26 - Sagittarius arm
46:08 - Lagoon Nebula
47:22 - Trifid Nebula
47:52 - Eagle nebula
48:33 - Wild Duck Cluster
49:25 - Omega Nebula
50:29 - Orion arm
51:06 - Orion nebula
52:14 - Pleiades cluster
53:14 - Lyra Nebula
54:34 - The Dumbbell Nebula
55:35 - The Owl Nebula
56:09 - Beyond the Milky Way
56:24 - The Andromeda Galaxy
58:46 - The Triangle Galaxy (M33)
01:00:20 - Great Dog dwarf galaxy
01:01:07 - Furnace cluster
01:01:49 - Eridan cluster
01:02:19 - NGC 1300
01:03:10 - NGC 1232
01:03:48 - Abell 3627
01:05:52 - NGC 4696
01:06:38 - NGC 4945
01:07:19 - IC 4329
01:08:59 - Sombrero Galaxy
01:10:09 - Sculptor Group
01:11:52 - Stars of Laniakea

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[factoryreject]

In the thumbnail Lanikaea looks like an adorable alien floof ball flying through space.

[TheEnigmaUniverse-vtpm]

I was born with many difficulties in my life. Although I am not fully educated, I have a strong love for science and the universe. Thank you for bringing it to me. Love you

[kevinb]

After watching a few of these I really yearn for actual human narration and non generic chat GPT and AI shit.

[lilytea]

0:16: 🌌 The video discusses the architecture of the super cluster of galaxies, including the local group and the Virgo cluster.
8:23: 🌌 Lenticular galaxies are a combination of spiral and elliptical galaxies, with a thin disk rotating around a central bulge but no spiral arms.
15:29: 🌌 Galaxy mergers and the cessation of star formation can lead to morphological changes in galaxies.
23:09: 🌌 The discovery of cosmic microwave background radiation and the movement of galaxies at high speeds.
30:29: 🌌 Studying the Milky Way helps us understand the universe and our place in it.
37:50: ! The Milky Way contains a galactic halo, a central region with a black hole, and a stable structure for the next few hundred million years.
45:44: 🌟 The Crab Pulsar is a fast rotating neutron star that emits strong electromagnetic radiation and is responsible for the central radiation of the Crab Nebula.
53:00: 🌌 The Omega Nebula is a massive and fertile star nursery in the Milky Way, located in the Orion arm of the galaxy.
1:00:45: 🌌 The Andromeda galaxy is a giant spiral galaxy with around 1, 000 billion stars that formed from the collision of two other galaxies.
1:09:00: 🌌 The Ruler Cluster, located close to the Great Attractor, is obscured by interstellar dust in the Avoidant Zone near the Milky Way's galactic plane.
1:15:52: 🌌 The video discusses visible galaxies in the sky, including the dwarf sculptor Galaxy and the Sirius star.
Recap by Tammy AI

[erikmardiste]

If u got a good size telescope you can actually look at a small part of it called the Markarin chain in the constilation Virgo

[EaizePeazy]

Loves this channel. I keep the playlist running when I sleep as well. The places I have explored in my dreams. Always happy to take a voyage with y'all.

[u.v.s.]

- Son, where have you been the whole night!?
- Mom, shut up, I swear I never left the Laniakea supercluster!

[Eric-ez]

I'm mentally exhausted and satisfied at the same time after this excellent episode 😁!!! Universal elements is what were made of, Kind of cool to think that.

[marradestiny]

I think my favorite thing about this video is watching several ads before even reaching 20 minutes in

[Theonly_z_Official]

Video mistake: 0:19

Uploader consider our moon 'Luna' as a planet

[krisyNYSee]

43:00 seeing where our sun is in the larger scale grand scheme of things, is amazing and I teared up genuinely to know how unique we are and how life as we know it hangs in the balance to be just Right for us to live our everyday lives the way we do. No words can really describe this feeling of such WOW 😮😳

[behnamzadeh]

This is magnificent video about universe .i did all space video's this is the best I ever seen.unbeliveble.thanks

[leslie]

The thumbnail reminds me of the fuzzy caterpillar that my kid came in on his finger in Houston. It’s super poisonous. I didn’t expect to see space stuff.

[werkstattkreuzberg]

This video contains the word super cluster about 1000 times. And if you see it 100 times, you hear the word super cluster 100, 000 times. And the scientists found that if you see it 100, 000 times, the word super cluster so often hits that you think you are the great attractor. But in the end it's all made of stars surrounded by gas and other stars. And gas!

[philipmcdonagh]

After watching this I'll say one thing we rely haven't got a clue about what who or why we are.

[nndorconnetnz]

I might be jumping the gun here. But when it's said our galaxy is traveling X amount of KM's per second. Whats that in reference to?
In case I missed a point some where, was that the centre of the universe?
We don't even know where that is right now.
We don't even know where we are cause we keep finding more galaxies out there all running away from some point not pointed out, our ability to see even further out gets better.
We are not the center of the universe. Well if we are... the heck what form of lotto did we win?
Edit:
The speed of light. It changes depending on gravity at any location. Time fits under the premise.
There must be a point of reference to which measurements are made and sadly I have yet to find one, well one from Googles resources ;)

[Mr]

I love the updated view on universe and the knowledge we have gained, but then when it comes back to big bang I give up.

[Evolved_Skeptic]

The current consensus on the formation of galaxies (based on recent observations of orbiting telescopes, including the JWST), is that in the very early stage of the galaxy (shortly after Gravity had separated from the other 3 forces & once cosmic inflation had sufficiently cooled things down), clumps of dark matter began to accumulate, slowly dragging baryonic matter (what stars, planets & us are made of) along with it, forming the very first proto-galaxies.

In the billions of years since, many of these early structures collided to eventually form the first real galaxies (each within an unseen, but measurable, dark matter halo adding to it's overall mass).

[donaldstewart]

does this Voice drive you nuts too?, with the constant ending every sentence like a QUESTION???

[johngordon]

So we just in some sort of big sneeze, I get it now