In article , I wrote:
By the way, the distances given in the press release correspond to
redshift 0.2 or so. That is more or less "now" as far as the history
of the Universe goes...

I probably should have quantified this. For a standard cosmology,
the age of the Universe now is 13.7 Gyr, and the age at z=0.2 was
11.3 Gyr. That's almost 20% younger, enough to expect noticeable but
probably not dramatic differences in galaxy populations.

--
Steve Willner Phone 617-495-7123
Cambridge, MA 02138 USA
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