La fin du monde. Évolution des températures minimales et maximales.

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Presentation transcript:

La fin du monde

Évolution des températures minimales et maximales

Septembre 1979 – Septembre 2005

================ METHANE ======= MILLIARD

Drake Equation N = R * f p n e f l f i f c L Rate of formation of Sun- like stars Fraction of stars with planets # of Earthlike planets per system Fraction on which life arises Fraction that evolve intelligence Lifetime of advanced civilizations Fraction that commun- icate # of advanced civilizations we can contact Frank Drake ~10

HD a.l., système triple Eventuel satellite rocheux Hot Jupiter, 2005

Gliese 581c (20 a.l., zone habitable), avril 2007

Laetoli (Tanzanie) : 3,7 MaMer de la Tranquillité (Lune), 1969

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