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Water and the Search for Life on Mars (Paperback, 2005 ed.)
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Water and the Search for Life on Mars (Paperback, 2005 ed.)
Series: Springer Praxis Books
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Mars has long been believed to have been cold, dead and dry for
eons, but there is now striking new proof that not only was Mars a
relatively warm and wet place in geologically recent times, but
that even today there are vast reserves of water frozen beneath the
planet's surface. As well as casting fascinating new insights into
Mars' past, this discovery is also forcing a complete rethink about
the mechanisms of global planetary change and the possibility that
there is microbial life on Mars. David Harland considers the issue
of life on Mars in parallel with the origin of life on Earth. At
the time the Viking instruments were designed, it was thought that
all terrestrial life ultimately derived its energy from sunlight,
and that the earliest form of life was the cyanobacteria with
chlorophyll for photosynthesis. It was assumed the same would be
the case on Mars and that microbial life would be on or near the
surface that the Vikings had sampled.
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