Warp wrote:
>   It then comes down to whether we can measure whether the recession speed
> of a galaxy is accelerating or not. (Can we?)

You would hve to look for changes in the redshift. I wouldn't think they're 
changing recession speed enough for that to be detectable with current 
instruments. Especially (I think) if recession speed is increasing because 
of increased space between us and not actual acceleration of the galaxies 
(because acceleration of the galaxies would affect the photons at the source 
while increasing space would only accumulate over time).

-- 
Darren New, San Diego CA, USA (PST)
  "How did he die?"   "He got shot in the hand."
     "That was fatal?"
          "He was holding a live grenade at the time."

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