Everything You Need to Know About Planet Earth

Planet Earth is the home of every lifeform, known to us, in the universe. Its age is about 1/3 of the age of the universe and, admitted, It is a thing of beauty. a slightly squashed fair with a heavy metal core, and a lighter surface crust, wrapped in a thin sliver of sweet air to breathe, with vast oceans, fertile plains, magnificent mountains, fresh water rivers, streams, lakes and aquifers, orbiting a star which warms us, and gives us energy. But how did our home come in to existence, and what’s it made of? 4.6 billion years ago, Earth was created from the remnants of dead stars, that collected in a giant, dirty gas cloud. The gas cloud became denser in its center, and formed an accretion disk. small particles started clumping together, and building larger and larger objects, until they form the objects we call “Planets” today. This process took 10 to 20 million years, and is still not very well understood. At about this time, when the solar system was young and chaotic, a giant object, about as big as Mars, collided with our home. The impact was violent, and if the object had been more massive, it might have destroyed Earth. Materials from Earth were smashed out into orbit, and formed the Moon, which is the biggest satellite in relation to its planet in the solar system. At this time, Earth was a hot hell, constantly being hit by asteroids, with seas of lava, and a toxic atmosphere. But something was about to change drastically. Earth cooled down. Water from the inside of the Earth wandered to the surface and rained down on Earth, only to vaporize again and become clouds. Millions of asteroids brought more and more water to our planet. All the water on Earth has about this volume compared to Earth. Today, the surface of Earth is 71% water, and 29% land. 97.5% is saline water, while only 2.5% is fresh water. The Fresh water is 69% ice and snow, 30% are ground waters, and only about 1% make up the remaining ground waters. But even this small part is mostly frozen. Only a tiny part of our water is actually lakes and rivers. and an even tinier part is bound in living things. So, gradually the Earth cooled down, and the surface formed a thin crust. But inside the earth, hot rock continue to swirl about, moving the crust from below and breaking it apart. This process is called “Plate Tectonics”, and is happening right now. We’ll make a whole video about it in the future. For now, let’s just say that the crust of Earth consisted of separate giant plates that move around. As they meet, they crumble, and create mighty mountains. OR: violently plunge back down, deeper into Earth, creating deep trenches. That’s the way the highest place on Earth was formed: Mt.Everest, and the deepest: the Mariana Trench. From our perspective, Earth’s mountains and trenches are mighty indeed, but when you look at the Earth in cross-section, you can see how tiny they actually are. The part we stand on is the crust, which is about 50 kilometers thick, though it can vary between 5 and 70 kilometers By the way, the deepest hole ever drilled by man is 12.262 kilometers deep. After the crust, comes the mantle. It’s a silicate rocky shell, and about 2,900 kilometers thick. The mantle consists of the upper mantle, and the lower mantle. The upper mantle has different regions, too. It’s upper part, which is viscous and carries the crust, is called the “Lithosphere.” After that, there comes the “Asthenosphere,” which consists of less mobile, mostly solid material. The lower mantle reaches deep down to the outer core of Earth. Earth’s outer core is a liquid layer of iron and nickel, about 2,266 kilometers thick. Temperatures vary from 4,000℃(7,232℉) to 5,700℃(10,292℉). And in the center, is the inner core. It’s mostly solid, a ball made of an iron-nickel alloy. with a radius of about 1,200 kilometers. 70% of the size of the moon, and about the temperature of the surface of the Sun. It is slowly growing at an estimated rate of about 1mm/year. Now, for some respective, this small layer of crystallized melt products of former molten mantle, is where we live. Then, there’s Earth’s magnetic field. It’s an invisible phenomenon that diverts high energy particles coming from the Sun and other sources, allowing for a stable environment with comparatively little radiation impact on Earth. But why is it there? Actually, we don’t really know a terrible lot about that. We know, it has something to do with the core of Earth. Inside this metal sphere, large electrical currents flow in complicated patterns. They cause a magnetic field, that sort of stabilizes itself according to the laws of electrodynamics. This entire system is called the “Dynamo.” But, don’t let us fool you into thinking we have it all figured out. Speaking of breathtaking information, what about the airy stuff that surrounds us? By volume, dry air consists mostly of Nitrogen, Oxygen, Argon, Carbon, a variable mount of water vapor, and small amounts of other gases. Humans are very dependent on the lowest layer of the atmosphere: the Troposphere – Where the weather is. It’s 12 kilometers thick on average. Above that is the Stratosphere, which is where the ozone layer protects us from the sun’s most aggressive type of light. Above that is the Mesosphere – the coolest place on Earth, with an average temperature around -85℃(-121℉). At about 80 kilometers up, the Thermosphere starts. The transition to space is a fluent one, without clear borders. but humans decided that space starts here. At about 100 kilometers, Earth stops, and space begins, though the atmosphere extends a bit further. In this region, we find the Ionosphere, the aurora borealis, and the ISS, and the outermost layer is the Exosphere, stretching up to 10,000 kilometers. It merges fluently with outer space, where there’s no atmosphere at all. The atoms and molecules in this area are so far apart, that they can travel hundreds of kilometers without colliding with each other. OK. Humans, in their present form, have only been around for 200,000 years. – that’s 0.004% of Earth’s history. Not long, really. And, here we are now, living in a thin, moist layer on a small, wet rock. We call this rock: Earth. It is the product of the universe’s deepest workings, the result of a constant process of creation and destruction, happening all of the universe, all the time, helped by chance, the laws of the universe and random events, we are really lucky.

100 thoughts on “Everything You Need to Know About Planet Earth

  1. There's brand new stuff in the Kurzgesagt Merch Shop. Check it out here: shop.kurzgesagt.org

  2. @ 2:17 nice touch with the moon. Showing what happend without saying.
    btw. a video on plate tectonics? 5 years and still non?

  3. That's why we should be grateful and have some humility. That's why we call Earth "Mata" (mother Earth), and bow before her.

  4. 0:11 Phil Swift: I sawed this planet in half and repaired it with only flex tape.

  5. Bruh this shits just a nerds fairy tale , how the fuck would they know how the earth was created

  6. We are all dead stars even the solar system but what courses the stars to made us.

  7. Earth is such a beautiful thing, and it's also probably a very rare thing in the whole universe. We must love it, care for it, stop the damage we've already done and, if possible, reverse it.

  8. If moon came from earth what makes it so interesting minus the fact it’s in space

  9. Kurzegasgt:
    Everything you need about earth
    In the test:
    knows nothing
    those bastards lied to me

  10. Earth is hollow remember the invisible cities enchanted,agharta lemuria and atlantis the underworld lands with advance civilization?

  11. The earth is gift, we need to take care of it before the end of the time

  12. Describe the place where you are living. (IELTS test) and I describe planet earth thanks to this video

  13. Aliens1
    We are going to earth
    Alien 2
    Whats earth
    Alien 1
    Did you watch the video
    Alien 2
    Alien 1

  14. Wrong, god made it in 7 days with Adam and eve and talking snake there.

  15. So how do they know what the inside of the world looks like when the deepest hole ever drilled is only 12 km…

    Hmmm…. They are for sure hiding the best nightclub from us

  16. Sometimes I feel bad telling my friends about this channel, because I know I just took all their free time away. And I might not see them for a week. Lol

  17. So this was created by an explosion and a LOT OF GOOD LUCK??

    You guys have much more faith than believers in God the creator of all.

  18. Kurzgesagt: We'll make a video about plate tectonics in the future.

    It's 2019 and we don't have a video about plate tectonics

  19. I actually wanna know how they dug this up to actually study it
    I mean we can't just xray it to know it is actually made up of iron and nickel

  20. that music tugs at my heartstrings. it is so intense yet gentle, how does that even work, i dont know, but it is

  21. I already know lots about the world so I don’t need to watch this Any more bye-bye to this video

  22. how do they know what's inside the earth when they haven't seen what's there yet?

  23. My current Utopian dream after watching this: Not only living in a world where unnecessary suffering (wars, prisons, modern-day slavery,etc.) does not exist, but the masses can dive into this beautiful source of education and where we can take a trip with it not only on earth but in space and that type of education is no longer a luxury of a few.

    Thank you for making me dream! Besides the beautiful info! Why is utopia seen in a negative light again? Oh well. Thanks again!

  24. The amazon is burning, and it provides 50% of the oxygen we breathe. lets enjoy earth before we all die!

  25. Lol. All of the factories in China produce for America and Europe. Culp is America and Europe. Not Indonesia or India.

  26. This channel needs more subs. Also after 5 years still no tectonic plate video WhY?

  27. Aurora Borealis?!? At this age of the universe, in the atmosphere of this planet, located entirely in the ionosphere.

  28. Great animation! It would be really awesome whenever teachers, scientist, or these types of videos reference "theories", that they would point out to the fact that they are theories. People, especially kids, need to know that these are ideas that are worthy to be debunked and challenged so that we can go beyond theories.

  29. I need to know more..!
    How the Carbonic gases of the
    core tuned into oil by distillation under and in the colded layer that
    Dinassors didn,t know?!

  30. Makes you think that there's a good chance that the great filter is probably behind us.

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