हमारा ब्रह्मांड कितना बडा है ? | How Big is Our Universe in Hindi
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The Universe is all of time and space and its contents. It includes planets, moons, minor planets, stars, galaxies, the contents of intergalactic space, and all matter and energy. The observable universe is about 27 billion parsecs (93 billion light-years) in diameter. The size of the entire Universe is unknown, but there are many hypotheses about the composition and evolution of the Universe. The earliest scientific models of the Universe were developed by ancient Greek and Indian philosophers and were geocentric, placing the Earth at the center of the Universe.[14][15] Over the centuries, more precise astronomical observations led Nicolaus Copernicus (1473–1543) to develop the heliocentric model with the Sun at the center of the Solar System. In developing the law of universal gravitation, Sir Isaac Newton (NS: 1643–1727) built upon Copernicus's work as well as observations by Tycho Brahe (1546–1601) and Johannes Kepler's (1571–1630) laws of planetary motion. Further observational improvements led to the realization that our Solar System is located in the Milky Way galaxy and is one of many solar systems and galaxies. It is assumed that galaxies are distributed uniformly and the same in all directions, meaning that the Universe has neither an edge nor a center. Discoveries in the early 20th century have suggested that the Universe had a beginning and that it is expanding at an increasing rate. The majority of mass in the Universe appears to exist in an unknown form called dark matter. The Big Bang theory, the prevailing cosmological model describing the development of the Universe, states that space and time were created in the Big Bang and were given a fixed amount of energy and matter that becomes less dense as space expands. After the initial expansion, the Universe cooled, allowing the first subatomic particles to form and then simple atoms. Giant clouds later merged through gravity to form stars. Assuming that the standard model of the Big Bang theory is correct, the age of the Universe is measured to be 13.799±0.021 billion years. There are many competing hypotheses about the ultimate fate of the Universe and about what, if anything, preceded the Big Bang, while other physicists and philosophers refuse to speculate, doubting that information about prior states will ever be accessible. Some physicists have suggested various multiverse hypotheses, in which the Universe might be one among many universes that likewise exist.[
Comments
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nice
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I think the universe will be in the shape of sphere because of gravity and it attract towards center and we know universe is expending its mean there centre in the space from there something which repels the matter and when the its energy of repulsion finish then again it will attract the matter towards the centre and will became smaller then atom size.
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good video. ..
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I Have Had 7 Very Unuseual Extra Terrestial Encounters with What I Describe to Be Solar Moon Related Flying Dancing Auroras Spinning Orbs Moon Lunar Solar Radiance Absolutely Incredible But True has True.1st Encounters Being Over Centre of Said London Hackney Roundabout on 11th November 1997 When I was visiting Fellow Peace workers Peace Makers At 11 Goodwin Street C.A.A.T.-C.N.D. Green Peaceful Fruit Trees Libra 1 Evolutionary Organisation in London City.That Evening was to Myself A Office Clark and Also A Nero Train Porter The Most Amazing Beautiful Extra Terrestial Encounter to Which Will Live with Myself The London Office Clark and Nero Train Porter at Hackney Train Station Forever.All 3 Of US Now Know We Are Not Alone in Our Universal Planetary Environmental Struggles in Life to Life Belive in True Libra Freedom of The Heavens of 1st Fruits Flowers Freedom Thorns to Defend US All In Life to Life Encounters. Nasal USA Wittgenstein Flying Orbs Myself Too Have Been Personally Visited Both in London and Your Liverpool 23 Breckside Park Annfield 23 Rd November 2002.Unbeliveable But True Extra Terrestial Flying Visitors Seen By Myself Flying Off Our Moon Lunar Surface Incredible Formations And 4 Four Moon Radiant Spinning Orbs Flying in to Centre of Group Formations of Dancing Moon Auroras. .7 Sightings 2 Personal Extra Terrestial Encounters .Last Sightings Reported and Seen Over Our Skies Mayday 31st 2009Uk Newpaper Reports and Photographs 1 June 2009..See We Are Not Alone.
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I want to know about star, and who live on star ??????
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worm hole ke travel ing mistry successfully ho jay to space ka end deekh sakta hai
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universe ka size kabhi pata cal hi nhi sakta
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mera dimag chota pad jata hai universe ke mamle me
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How does an atom create?
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Kia chutiya pa bol raha hai aesa lag raha hai mantar par raha hai
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the proper answer to this question do exist in shrimadbhagbat mahapuran.
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hari ananta hari katha ananta... ... ...
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nice....
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apka video bohot achcha hai but please ek baat batane ke baad Hume us bare me ek video dikhae like example ke taur aur thoda ruk ruk kar bole bas itna hi but in video was great thanks.
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अवकास, आकास गंगा कहा तक हे, हर चिज का अंत हद हे तो अवकास कि हद कहा तक, ओर मानो जहा हद होगी उसके बाद कया हो सकता,हे कोइ अनुमान,प्लीज तारण ही सही वीडियो बनाये
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watch my channel for great and motivational videos and motivational speeches | Your videos is also great and I subscribe you.
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nice acha btaya
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What is this..jus a basic knowledge man..which we already have...and you took too much time for your Chanel subscription and all... give some extra knowledge to people if you have or stop playing this yak
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Hamare galaxy ki tarah aur bhi galaxy hai kya
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Hamare galaxy ki tarah aur bhi galaxy hai kyq
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