The observable universe is a sphere 93 billion light-years across containing approximately 2 trillion galaxies, and the Milky Way galaxy is so small that it could fit inside this cosmic bubble 150 sextillion times; this vastness exists because light has had time to travel from distant galaxies to reach us, creating a 'cosmic bubble' that we can observe but cannot reach.
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How Big Is the Observable Universe? Mind-Blowing Scale Explained! đAjoutĂ© :
Last at time the great war.
But today here's what will make your brain short-circuit.
The Milky Way is tiny enough to fit inside the observable universe 150 sextillion times. That's a sphere 93 billion light-years across filled with 2 trillion galaxies. But here's the cosmic bubble because light's had time to reach us.
And the terrifying part, most of it we can never reach. Want to know why?
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