2. Vie extraterrestre

!"#"$%&#'()'#)*%&+&,')-')./)0&'
Science&et&Fantaisies
!/12&'3)4$3,'..'
5/6$%/#$&%')-')!&,"%/.$+&')'#)-')7$(8$92&8&')-3
!3("38:);/%&(:)<%/,9'
7$..$=3')*%&+&,/.&#"()-')./)>&':)?@A:)B'%)/>%&.)CDBB

BE)F,#%$-39G$,
!"#$%&#&'()*(&))&+()&
,"#-&+#.)%/0&+#1&#2*#3%&#&(#2&0)#&43%)544&6&4(
7"#854920+%54+
*%&+&,')-')./)0&'

!"#"$%&#'(H)-"I,&G$,(
:%9)56;(;5)%(&+<#(*%22&#=#96
:;(;5)%(&+<#96#=#(*%22&#=#>??#6
BD)98 CD)µ8
!&9%$(9$J&')".'9#%$,&=3'
KL)BDDDDM

N'8J()-')#%/,(J$%#)O3(=3PQ)./)N'%%')R)DEB)S)BDD)8&..&$,()-P/,,"'(
7$..&(&$,()',#%')J'G#()9$%J()K/(#"%$T-'()'#)9$8U#'(M

4"$+%/J2&')-3)(V(#U8')($./&%'
W(#"%$T-'( 7$8U#'(