In article <
e5623cfa-7fc4-46d5...@l6g2000pbf.googlegroups.com>,
This sounds a little bit like Hal Clement's _Close to Critical._
It's a novel, though, not a short story, and the "people" the
story follows are local to the planet, not particularly humanoid
(lots of arms, IIRC) who have been brought up by remote-control
mechanisms by humans in a station orbiting the planet. One of
the plot elements is the interaction between these locals and
others who *weren't* brought up by humans; another is about two
kids (one human, one another species) who get into a spaceboat
and wind up floating on the surface of the planet's "ocean" and
have to be rescued somehow. The chemistry of the planet is very
weird, and the terrain changes daily as you describe.
A good story, but perhaps not the one your friend is thinking of.
I may haul it out and reread it today.
--
Dorothy J. Heydt
Vallejo, California
djheydt at gmail dot com
Should you wish to email me, you'd better use the gmail edress.
Kithrup's all spammy and hotmail's been hacked.