How and Why Universe is actually going to end?
Queries Solved:
Why Universe is actually going to end?
What are Dark Matter, Dark Energy, Black Holes?
What is Baryonic matter?
The end of the universe is intermittently connected which includes the universe. 100 years ago, Einstein developed the Theory of General Relativity, made up of equations that help us understand what is the relationship between a universe and its shape. It turns out that the universe can be rotated like a ball or sphere. We call it positively curved or closed. Or it could be shaped like a saddle. We call it negatively curved or open. Or it can be flat. And that shape determines how the universe will live and die. Now we know that the universe is very close to the flat. However, the components of the universe can still affect its ultimate fate. We can predict how the universe will change over time if we measure the amount or energy density of various components in the universe. So, what is the universe made of?
The universe has all the things we can see, such as stars, gases, and planets. We call these things ordinary or bionic substances. Even though we see them around us, the total energy density of these components is actually very small, about 5% of the total energy of the universe. So, now let's talk about what the other 95% is. Only 27% of the rest of the universe's energy density is made up of dark matter. Dark matter only interacts very weakly with light, meaning that it does not shine or reflect the way the stars and planets do, but, in every other way, it behaves like normal matter. It does - it attracts things by gravity. In fact, the only way we can detect this dark matter is through this gravitational interaction, how things orbit around it and how it twists light as it twists the space around it. We have yet to discover a darker particle, but scientists around the world are discovering this elusive particle or particles and the effects of dark matter on the universe. But it still doesn't add up to 100%. The remaining 68% of the universe's energy density is made up of dark energy, which is more mysterious than dark matter. This dark energy does not behave like any other substance we know and acts like an anti-gravity force. We say that it has a gravitational pressure, which is not normal matter and dark matter. Instead of pulling the universe together, as we would expect gravity, the universe seems to expand at an ever increasing rate. The leading idea for dark energy is that it is a cosmological constant. This means that it has the odd property that it expands as the amount of space increases to keep its energy density constant. Therefore, as the universe is expanding, so will more and more dark energy. Dark matter and bioronic matter, on the other hand, do not expand with the universe and become more diluted. Because of this property of cosmological constants, the future universe will dominate more and more dark energy, cool and cool and expand faster and faster.
Eventually, the universe will run out of gas to form stars, and the stars will run out of fuel themselves and burn, leaving the universe with only black holes. Given enough time, even these black holes will evaporate, leaving a universe that is completely cold and empty. This is what we call the heat death of the universe. While it may seem hopeless to live in a universe that will be devoid of the cold and life of its lifetime, the end of our universe actually has a beautiful symmetry to its hot, furious beginning. We call the accelerated end state of the universe a de Sitter phase, named after the Dutch mathematician Willem de Sitter. However, we also believe that there was another phase of de Sitter expansion in the universe at the earliest time of its life. We call this early period inflation, where, soon after the Big Bang, the universe expanded very rapidly for a brief period. Therefore, the universe will end in the same state as when it began, intensified. We live at an extraordinary time in the life of the universe where we can begin to understand the journey of the universe and see a history that plays itself out on the sky for all of us to see. You can read many articles like this on our website, just search it in the bar!
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