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Cosmology is a branch of astronomy involving the science of the universe's origin. The universe is all of space and time and their contents. It comprises all of existence, any fundamental interaction, physical process and physical constant, and therefore all forms of energy and matter, and the structures they form, from sub-atomic particles to entire galaxies. Space and time, according to the prevailing cosmological theory of the Big Bang, emerged together 13.
Cosmology is a branch of astronomy involving the science of the universe's origin. The universe is all of space and time and their contents. It comprises all of existence, any fundamental interaction, physical process and physical constant, and therefore all forms of energy and matter, and the structures they form, from sub-atomic particles to entire galaxies. Space and time, according to the prevailing cosmological theory of the Big Bang, emerged together 13.787±0.020 billion years ago, and the universe has been expanding ever since. The universe has expanded into an age and size that is physically only in parts observable as the observable universe, which is approximately 93 billion light-years in diameter at the present day, while the spatial size, if any, of the entire universe is unknown.
This book is of coronavirus and all about it , can know more about it in this book .. This is wrote by hearing news and added more what knew .
This book is of coronavirus and all about it , can know more about it in this book .. This is wrote by hearing news and added more what knew .
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