what is universe and stars
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Universe is where you live or exist including all the living or non living things like planets, stars, galaxies, dust clouds,light,rays, gravity, magnetism,electromagnetism and the list goes on forever....
And star is luminous sphere of plasma ,proton etc.held together by its own gravity.
And star is luminous sphere of plasma ,proton etc.held together by its own gravity.
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The Universe is everything we can touch, feel, sense, measure or detect. It includes living things, planets, stars, galaxies, dust clouds, light, and even time. Before the birth of the Universe, time, space and matter did not exist. ... All we do know is that the visible Universe is at least 93 billion light years across.
A star is a luminous ball of gas, mostly hydrogen and helium, held together by its own gravity. Nuclear fusion reactions in its core support the star against gravity and produce photons and heat, as well as small amounts of heavier elements. The Sun is the closest star to Earth.
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