fermi's paradox

In the 19th century, a long-standing problem in cosmology was that the sky was curiously dark at night. If the universe is infinitely large, and contains an infinite number of stars, the end point for any part of the night sky should be bright, illuminated by light shining from a distant star.

In the 19th century, a long-standing problem in cosmology was that the sky was curiously dark at night. If the universe is infinitely large, and contains an infinite number of stars, the end point for any part of the night sky should be bright, illuminated by light shining from a distant star.