Liked on YouTube: Earth's Core Is Actually Hotter Than the Sun!

Earth's Core Is Actually Hotter Than the Sun!
Earth's core:From what the core of the Earth is really made of, to what its temperature could mean for the planet itself, join as we explore whether the Earth's Core Is Actually Hotter Than the Sun. Subscribe for more videos:https://www.youtube.com/c/InsaneCuriosity?sub_confirmation=1? I want you to picture the Earth right now. You can picture it as if you're looking outside your window, or as if you're in space looking at the Earth in its entirety. On this planet, of which we are the only one that we know of that has life, we have done many wondrous things. And over the course of many thousands of years we have learned many amazing things about our planet. We've learned how it works for the most part, we've learned how planets grow and allow creatures like us to breathe via things like Photosynthesis, we learned about the history of the world and some of the many creatures that lived in it before humanity ever got there. And to be clear, we obviously haven't learned EVERYTHING that this world has to offer, there are many mysteries that still lie out there waiting for us to solve them. But one of the biggest mysteries by far is that of the core of the earth. While it's true that we THINK we know what's at the Earth's core...we honestly don't know the truth of it for a very simple reason...we can't reach it. The average distance to the Earth's core is just about 4000 miles beneath the ground that you stand on. Which may not seem like a lot when we've gone into space and have a probe that's gone well past Pluto (which is still a planet...) but the difference between space and the core of our planet is pressure and heat. The deeper we go into the planet, the more pressure that is exerted (not unlike the ocean where the deeper you go the more protection you need) and the hotter that you get. At present, we have been unable to drill to the core, in fact, we haven't even gotten close! The closest drill hole that has been dug via the actual surface of the Earth (this does not include the ocean) is about 7.5 miles via the Kola Superdeep Borehole that was dug by the Soviet Union. Why did they get stopped? Because at that point in their drilling...every single drill bit that they tried to use to get deeper...melted. Told you it's hot down there. And yeah, it's REALLY hot. But what has surprised people in many years is that the temperature of the core might just be hotter than you expect, including being hotter than the surface of the sun. The earliest guesses (based on science and backed up by actual samples of items from within the Earth like the ones taken by the Kola Superdeep Borehole) of the Earths' core temperature came in the 1900's. They looked at samples of iron within the Earth and did tests on the iron to suggest that the core of the Earth was around 5000 degrees Celsius. "It was just the beginning of these kinds of measurements so they made a first estimate... to constrain the temperature inside the Earth," said Agnes Dewaele of the French research agency CEA and a co-author of the new research. But... "Other people made other measurements and calculations with computers and nothing was in agreement. It was not good for our field that we didn't agree with each other, Obviously debate doesn't lead to definitiveness. But you might be curious as to why the core temperature of the Earth matters. I mean, clearly it's hot enough to keep the Earth going (more on that later) and obviously since the planet has been around for potentially billions of years we don't have to worry about it erupting, right? And yeah, you are, but you're thinking about this in a much smaller scale. There are many disciplines of science that rely on accurate data, and having the correct temperature of the Earth is a welcome thing to have for those trying to study all aspects of the Earth: "We have to give answers to geophysicists, seismologists, geodynamicists - they need some data to feed their computer models," Dr Dewaele said. Without the right data, the more errors and guesses and estimates have to be made, and as time goes on, that makes science more theoretical than proven. And thus, the push to find the true temperature of the Earth continued. Based on our best guesses, the Earth's core is a solid ball of iron and possibly nickel. This is why tests on these metals are at the forefront of trying to figure out the temperature. And after a while, scientists figured out a new way of looking at iron samples to try and determine how hot the core was, and they did it using something that's been around for decades...X-Rays. How did they do this? By making use of the European Synchrotron Radiation Facility - one of the world's most intense sources of X-rays. #InsaneCuriosity#RecentSpaceDiscoveries #Earth
via YouTube https://www.youtube.com/watch?v=7uHUVG0T9po