How big is our Universe?

If you look the picture above, you will find a dot which is actually our Earth. The Milky Way is 100000 light years from one side to another. Compare our Earth with Milky Way. Milky Way is located in the Local Group which is 10 million light years from one side to another. Here 54 Galaxies like Milky Way are found. Compare our Earth with Local Group. Virgo Supercluster is 110 million light years from one side to another is the place where more than 100 Local Groups are located. Compare our Earth with Virgo Supercluster. Laniakea Supercluster is 520 million light years from one side to another where 1,00,000 Local Group's are found. Compare our Earth with Laniakea Supercluster. Laniakea Supercluster is also a small part of our Observable Universe, the part of the Universe human being have reached. And according to Cosmic Inflation Theory, the whole Universe is 150 sextillion times bigger than the Observable Universe.

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A 2nd Grade student ask Neil Degrasse about the Collision of two black hole....he wants to know that Would one black hole suck another one when they collide

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On this day in 1969, the Eagle lunar landing module, carrying U.S. astronauts Neil Armstrong and Buzz Aldrin, landed on the Moon, and several hours later Armstrong became the first person to set foot on its surface.

Happy Birthday Nikola Tesla??

Famous Stephen Hawking theory about black holes confirmed | Live Science
“One of Stephen Hawking's most famous theorems has been proven right, using ripples in space-time caused by the merging of two distant black holes.
The black hole area theorem, which Hawking derived in 1971 from Einstein's theory of general relativity, states that it is impossible for the surface area of a black hole to decrease over time. This rule interests physicists because it is closely related to another rule that appears to set time to run in a particular direction: the second law of thermodynamics, which states that the entropy, or disorder, of a closed system must always increase. Because a black hole's entropy is proportional to its surface area, both must always increase.....”

livescience.com

Famous Stephen Hawking theory about black holes confirmed

Physicists analyzed data from the first ever gravitational waves detected to prove Hawking's theory, and think that even more could be discovered from studying the ripples in space-time.