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In The News
5 STORY ONE
s s Ancient villagers in a pocket
ofsChinassetstheirssightssons
thesseas,snotsrice
8 BOd Y & BRaiN
s s Obesity versus the brain
s s Without serotonin, male mice
woosbothssexesss
9 a TOM & COSMOS
s s Diverse planets emerge
fromscloudssofsgas
s s MESSENGER delivers new
Mercurysportraits
10 GENES & CEllS
s s Worms die later with dye
s s Newborn neurons help heal
s s Genetic ghosts keep mice trim
s s Genes and one man’s cancer
12 huMaNS
s s Ax makers landed in Asia early
s s Texas site shows signs
ofspre-Clovisspeoples
14 Ma TTER & ENERGY
s s Diamond defects could
befriendsquantumscomputing
s s Meet graphene’s new sibling
15 ENviRONMENT
s s Dusty danger in Iraqi air
s s Japanese radiation studied
insSeattle
s s Sonar disturbs beaked whales
s s Early farmers added to
air-warmingsgases
18 lifE
s s Big bunny, no hop
s s Assessing monarch numbers
Special Issue
20 COSMiC quESTiONS,
aNSwERS pENdiNG
Solving the universe’s mysteries
issasreal-lifesMission: Impossible.
22 wha T happENEd
BEfORE ThE BiG BaNG?
By Ron Cowen
24 wha T iS ThE uNivERSE
MadE Of?
By Alexandra Witze
26 iS ThERE a ThEORY Of
EvERYThiNG?
By Matt Crenson
28 aRE SpaCE aNd TiME
fuNdaMENTal?
By Tom Siegfried
30 wha T iS ThE fa TE Of
ThE uNivERSE?
By Elizabeth Quill
pluS: Fast facts, past findings
andsprojectssaidingsthesquest.
Departments
2 fROM ThE Edi TOR
4 NOTEBOOk
34 BOOkShElf
35 fEEdBaCk
36 COMMENT
Toxicologist Ila Cote on new
waysstosstudyspublicshealthsrisks.