¥The sky is relatively dark at night, but in an infinite, eternal universe
it should be at least as bright as the sunÕs
surface!
–Imagine universe divided up into spherical shells centered on us (like layers
of an onion)
–If stars reasonably uniform in distribution, then number of stars per shell
increases with square of distance.
–But apparent brightness of each star decreases with square of distance, so each
shell provides an equal amount of brightness, and
total will be infinite!