Expanding universe: Faster than light

Expanding universe: Faster than light

Observable universe

13.8 billion years ago, this universe was born to us from the Big Bang. Currently, our observable universe is spread over 93 billion light years. From this we can see clearly that the expansion of the universe is more than the speed of light. But we all know that nothing in the universe can travel faster than light. So now the question is, how did our observable universe expand to reach 93 billion light years in 13.8 billion years? So guys, you are now at Fresherfor. From today’s talk we will learn how our universe is expanding at a much faster pace than the speed of light.

Expanding universe

Guys, our universe has been growing continuously since the Big Bang Everything in our universe is moving. As our world revolves around the sun. The sun, along with our entire solar system, is conducting our Milky Way galaxy. And our Milky Way Galaxy, is moving in this universe. At the same time, our universe is expanding rapidly. It is much faster than light. But how is it? According to theory of relativity, no object in the universe can travel at the maximum speed of light. So how are all the galaxies in the universe moving away from each other at such a fast pace?

sir edwin hubble During the study of the universe, it is seen that the galaxy is traveling faster than the light. If you look at a galaxy far in the universe, you will see that galaxy is moving away from us faster. But how is that possible? So was Albert Einstein’s theory wrong? No friends, that’s not it. According to Albert Einstein’s theory, nothing in the universe can overcome the speed of light. For this, the speed of lights is called the ultimate speed. But you guys will be surprised to know that nothing in our universe is going away from it. Even faster than the light, space is expanding. Now you may have a question in mind. What does this mean?

Space expansion

Guys, that means the universe itself is growing. That means that the empty space in the universe that we see in the dark is expanding on that space itself. Now the question is one. How is the spread of space possible? In fact, the empty space in the universe is also empty for us. But that place also has a huge amount of dark matter, dark matter and dark energy. Because of this dark matter, the universe is expanding faster than light. And one object is moving away from another object, at a faster rate. This implies that all galaxies that are moving faster than light are moving away because of space expansion. Let’s try to understand this easily with an example.

Space expansion

Think, a balloon is our entire universe. And it’s getting bigger. Now think of these white dots in a balloon, a galaxy. Now as much air as I can inside this balloon, this balloon will start to bloom. And all these dots will move away from the top. With that the balloon will expand. For this, all these dots will move away from the top, to expand the space inside the balloon. Just like that, dark matter and dark energy are also expanding the spaces in our universe. Which is why the distant galaxy is moving away from us at a much faster pace. It’s faster than light.

Dark matter and Dark energy

All of these dark matter and dark energy, currently beyond our knowledge of science. We know that it is an energy that is pushing away the visible object of our universe. All of these visible objects are adjusting for dark matter and dark energy. But both are the opposite. In our universe all these energies are everywhere. This dark energy is completely anti gravitational. It does not have any effect on the gravity. It is not possible to detect this dark matter and dark energy. Because dark matter and dark energy do not reflect light.

In our universe, dark matter and dark energy occupy 95 percent of the space. Our observable universe is created by only 5 percent of physical objects. From this you can understand that most of the universe is empty. And the dark is full of darkness. 95 of them, too, is made up of mysterious dark matter and dark energy. Which we will try to talk about in the next discussion. So guys, this is the talk so far today. If you like this discussion, please share it with everyone. Also, if you are new to this site, please EMAIL SUBSCRIPTION to get the latest updates on scientific discussions. Next Time I will be presenting you with such scientific and latest information. Thanks.

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