A black hole isn't a hole. Here's a quick overview of basic cosmic concepts

in #knowledge • 4 months ago

Light Year: A light year is a unit of distance. It represents the distance that light travels in one year. The speed of light is 300,000 kilometers per second, so one light year is approximately 9.46 trillion kilometers.
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Black Hole: After a star dies, it can collapse into a white dwarf, and some of these white dwarfs eventually become black holes. The gravity of a black hole is so strong that even light cannot escape, making it appear completely black.
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Star: A star is a celestial body, like our Sun, that generates its own light.
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Wormhole: A wormhole is a hypothetical narrow tunnel in space that could connect two different points in spacetime. For example, there might be a shortcut between our Milky Way and the Andromeda Galaxy through which we could potentially reach Andromeda in just one day.
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Fourth Dimension: A line is one-dimensional, a sheet of paper is two-dimensional, and our world is three-dimensional. We can alter two-dimensional objects in three-dimensional space, such as folding a piece of paper. Similarly, if we existed in a four-dimensional space, we could fold or manipulate three-dimensional space, potentially bringing distant galaxies closer to us, enabling us to reach them quickly.
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