Stars Are Everywhere, So Why Is the Sky Still Dark?

Why is space so dark despite all of the stars in the universe? The question of why space is dark, even though it is filled with stars, has puzzled people for centuries. In fact, this question has a special name in astronomy: Olbers’ paradox. Astronomers estimate there are around 200 billion trillion stars in the [...]

from SciTechDaily https://ift.tt/mIdEA7N