5
11
14
22
5 STORY ONE
s s A cell reprogrammed with
asman-madesgenomesinchess
researchersscloserstosfullys
syntheticslife
8 a TOm & cOSmOS
s s Particle decay hints at
whysmattersrules
s s Black hole takes off-center
stage
s s WISE eyes the Heart
andsSoulsnebulae
10 humaNS
s s Disgust and anger look the
samestosyoungskids
s s Gene plus bullying ups risk
ofsemotionalsfallout
s s Perfect screen screams
s s Ardi may or may not have
beensonesforsthestrees
12 ma TTER & ENERg Y
s s Ball lightning may be all in
yourshead
s s Better solar cell efficiency
throughsquantumseffects
13 bOd Y & bRaiN
s s Major study of cell phone–
s s Dementia caregivers face
cognitivesriskssthemselves
14 lifE
s s Lying to get the ladies
s s Why the argonaut got its shell
s s New clues point to team of
honeybeeskillers
s s Chatty bacteria slow healing
Features
16 NOT juST a high
COVER STORY: Cannabis
compoundssshowstheirsstuffs
againstsashostsofsmedicals
problems, srelievingssymptomss
farsbeyondspainsandsnausea.
By Nathan Seppa
22 mEl TiNg a T ThE micROScalE
Studying polar sea ice up close
couldshelpsscientistssunderstands
itssdisappearance.
By Alexandra Witze
Essay
26 law & diSORdER
For clues about why the arrow
ofstimesappearsstospointsinsjusts
onesdirection,sphysicistsslooks
backstosthesBigsBangs—sands
before.
By Tom Siegfried
Departments
2 fROm ThE Edi TOR
4 NOTEbOOk
30 bOOkShElf
31 fEEdback
32 cOmmENT
Bioethicist Glenn McGee
discussesstheslatestsnewssofss
“synthetic”slife.