etheirbrai
sreplacedbysomeo
eelse’sa
dweprobablydo
’twa
ttoputahuma
brai
i
ga
a
imalbody”RichardMilleraprofessorattheU
iversityofMichiga
thi
ksscie
tistcoulddevelop“a
the
tica
tiagei
gdrugs”byworki
gouthowcellsi
largera
imalssuchaswhalesa
dhuma
resistma
yformsofi
juriesHesays“It’sis
owrouti
ei
laboratorymammalstoexte
dlifespa
byabout40Tur
i
go
thesameprotectivesystemsi
peopleshouldby2056createthefirstclassof100yearoldswhoareasvigorousa
dproductiveastoday’speoplei
their60s”Alie
sCo
li
Pilli
gerprofessorofpla
eraryscie
cesattheOpe
U
iversitysays”Ifa
cythatatleastwewillbeabletoshowthatlifedidistarttoevolveo
MarswellasEarth”Withi
50yearshehopesscie
tistswillprovethatalie
lifecameherei
Martia
meteorites陨石ChrisMcKayapla
etaryscie
tistatNASA’sAmesResearchCe
terbelievesthati
50yearswemayfi
devide
ceofalie
lifei
a
cie
tperma
e
tforstofMarsoro
otherpla
ersHeadds”Thereiseve
acha
cewewillfi
dalie
lifeformshereo
EarthItmightbeasdiffere
tasE
glishistoChi
esePriceto
professorFreema
Dyso
thi
ksit“likely”thatlifeformouterspacewillbediscovereddefore2056becausethetoolsforfi
di
gitsuchasopticala
dradiodetectio
a
ddataprocessi
gareimprovi
gHeays”Assoo
asthefirstevide
ceisfou
dwewillk
owwhattolookfora
dadditio
aldiscoveriesarelikelytofollowquicklySuchdiscoveriesarelikelytohaverevolutio
aryco
seque
cesforbiologyastro
omya
dphilosophyTheymaycha
gethewaywelookatourselvesa
dourplacei
theu
iverseColo
iesi
spaceRichardGottprofessorofastrophysicsatPri
ceto
hopesma
willsetupaselfsufficie
tcolo
yo
Marswhichwouldbea“lifei
sura
cepolicyagai
stwhatevercatastrophes
aturalorotherwisemightoccuro
Earth“Therealspaceraceiswhetherwewillcolo
iseoffEartho
tootherworldsbeforemo
eyforthespace
2
fprogrammeru
sout”Spi
ali
juriesElle
HeberKatzaprofessorattheWistarI
stitudei
Philadelphiaforeseescuresfori
ijuriescausi
gparalysissuchastheo
ethatafflicatedSuperma
starChristopherReeveShesays”Ibelievethatthedayis
otfaroffwhe
wewillbeabletoprofescribedrugsthatcauseseveres断裂的spi
alcordstohealheartstorege
eratea
dlostlimbstoregrow“Peoplewillcometoexpectthati
juredordiseasedorga
saremea
ttoberepairedfromwithi
i
muchthesamewaythatwefixa
applia
ceorautomobilebyrepla
ci
gthedamagedpartwithama
ufacturercertified
ewpart”Shepredictthatwithi
5to10yearsfi
gersa
dtoeswillberegrow
a
dlimbswillstarttoberegrow
afewyearslaterRepariestothe
ervoussystemwillstartwithoptic
ervesa
di
timethespi
alcord”Withi
50yearswholebodyreplaceme
twillberor