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The
X-Life Files
EXOBIOLOGY: LIFE
IN THE SOLAR SYSTEM
Introduction - Index - Search - Galileo at Jupiter - Digressions on Scientific Method - Link Library
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“The
three things necessary for life are liquid water,
the right
biogenic elements, and a biologically useful source of
energy.”
Planetary scientist Steven Squyres of Cornell, speculating on the
likelihood of a Europan ocean ...