[ELi5]If the universe is full of stars why is it so dark?
In: Physics
It isn’t dark, it is full of amazing things that emit a lot of light & heat, quasars, Stars, nebulas, galaxies, supernovas, there are new stars blazing into life as old ones are dying, many of the stars you see in the night sky have already dimmed out of existence , the light from them has taken so long to get here. The universe has clouds of gas, rainbows of light, stars that are yellow giants like ours to red dwarfs that are a fraction of the size. It looks dark to the naked eye because the stars are so far apart that the space in between appears empty.
Artificial light reflecting into our atmosphere masks a lot of what is in the night sky.
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