THE OBSERVABLE UNIVERSE

Our Solar System has a Boundary, The KUIPER BELT. After this we reached to the Milky-Way. Our Milky-Way also has a border, After that we entered to the VIRGOUS SUPER CLUSTER. All the objects in the Universe has a boundary or a border. The Universe also has a Boundary? Let's see about it. 

THE OBSERVABLE UNIVERSE:

Earth is originated by 4 billion years ago. The Big-Bang held by 13.8 billion years ago. That light reaches the Earth by 13.8 billion Light years. The Astronomers created the COSMIC MICROWAVE BACKGROUND (CMB) to study the Big-Bang. In that It ranges by 2.7 Kelvin. 

This is the Light of Big-Bang. They changes this image to the Micro Levels to see the difference. The Observable Universe extends till 42 billion Light Years in which we see the Universe from our Earth (as a center). No objects is visible after this. Because the Light didn't reached yet. Universe origins by 13.8 billion years. But we could see 42 billion Light Years, How is this Possible? Because, No Matter in the Universe will travel in the Speed of Light. But the Sped of Light is very slow when compared to the Universe. For Example, The light of the Sun takes 8 minutes to reach the Earth. GNZ11 is the longest visible Galaxy from the Earth. It is at a distance of 13.4 billion light years from the Earth. It is not visible now. Because the expansion of Universe. The expansion of Universe is accelerated very faster. 

 THE HUBBLE SPHERE:

Scientists coined the HUBBLE SPHERE. The objects inside the Hubble Sphere expands slower than the Speed of Light. The objects that are outside from the Hubble Sphere expands faster than the Speed of Light. Faster than Light? Is it Possible? No objects in the Universe will travel in the Speed of Light. But, Universe expands faster than the Speed of Light. This is may be the help of DARK ENERGY. The Galaxy GNZ11 is outside the Hubble Sphere. So, it is not visible now. If we able to reach it, It goes away from us by the billions of Light years. The Light of the longer and Expanding Galaxies, are RED-SHIFTED in the Visible Spectrum. The light Waves of these Galaxies are stretched due to the Longer distances. Is Hubble Sphere is the Boundary of the Universe? The simple answer is NO. For the understanding, If you are standing under the Street Light in night, The Light from it covers  particular distance which are visible to us. But away from the Light are not visible which mean Object is present, But, they are Invisible. That why the Hubble Sphere is coined. 

THE CONCLUSION:

By the Human discovery, OUR UNIVERSE HAS NO BOUNDARY. If it has a Boundary, it won't visible. Because, Universe is expanding faster than Light. 

Thanks for UNSIGNED.