giorgio bianciardi university of siena
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Life in the Universe #2_2. Giorgio Bianciardi University of Siena. Life beyond the Earth: the solar system. 1976 Viking #1 Viking #2. Life on Mars ?. ALH84001. Life on Mars (billion years ago)?! D.S. Mc Kay, Science, 1996. PAH. Beyond Mars. Titan: a Saturn moon. Jupiter moons. - PowerPoint PPT Presentation
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Giorgio Bianciardi
University of Siena
19761976Viking #1Viking #1Viking #2Viking #2
Life on Mars ?Life on Mars ?
ALH84001ALH84001 Life on Mars (billion years ago)?!Life on Mars (billion years ago)?!D.S. Mc Kay, Science, 1996D.S. Mc Kay, Science, 1996
PAHPAH
Jupiter moonsJupiter moons
Titan: a Saturn moonTitan: a Saturn moon
Fermi’s paradox: where are they?
Liquid water & Time
= 1:10050%
5%
90%
Extrasolar planets
Stable orbits
= 1: 10 000..planets were life
could arise…
Life is rare / Intelligent life is very and very rare
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