Yep,
Much of this was done a stone's throw from Moose at Berkeley. Type Ia
supernovas are like standard candles (after
serious data manupulation that I no longer remember) and the
brightness is inversely proportional to distance of course after this.
A really really old one--and others now from Hubble a have a larger red
shift. This is consistent with the acceleration of the the expansion
with no clear other explanation. A really old Super Nova Ia in 1997
supports the model of a universe consisting of about one third matter
and ordinary energy and about two thirds dark energy oppossing the
effect of gravity. (The expansion was slowing early on when matter
was closer together.)
Could be a cold dark future and what is left after the last proton
decays? I would prefer a cycling universe, just seems more elegant,
reassuring.
A not goin to worry bout it, Mike
As to contemporary theories of the fate of the universe, the last I
read
said that expansion would continue until the event horizon beyond which
light cannot be seen would eventually isolate each individual star in
darkness. Somehow, that sounds to me more like a projection of
alienation, aloneness and depression than a theory that will last very
long.
Moose
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