Gully
Gazing:
Scientists
Search
for
Flowing
Water
on
Mars One
of
the
more
perplexing
finds
on
Mars
are
features
that
look
like
the
product
of
groundwater
seeping
to
the
surface.
These
gullies
could
be
formed
by
flowing
water,
perhaps
fed
by
a
groundwater
supply.
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More
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