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Re: Olbers

Neither. Number of stars is insufficient to fill the night sky.

average star life is 10^10 years too many have died.

bc, who likes this reason better than the received wisdom from the AIP

Mark Sylvester wrote:

Both the finite age of the universe and the fact that it's expanding
contribute to explaining Olbers' Paradox, and I'm told that the former is
the main contribution. I also sometimes read that both are *necessary*. Why
is this the case, if indeed it is?


Mark Sylvester
Duino Trieste Italy