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In The News
5 STORY ONE
s DNA provides more complete
portrait of the Iceman
8 ATOM & COSMOS
s Physicist proposes “time
crystals”
s Superhot impacts produce
lunar flashes
10 BODY & BRAIN
s Antibiotics not much help
against sinus infections
s Two cells key to fly memories
s Neurons know how to bet
s How the worm squirms
s Light influences primate
brain cells
12 HUMANS
s Babies know nouns early
s Booze boosts creativity
14 GENES & CELLS
s Prions offer evolutionary
advantages to yeast
s Seeing and feeling require
same protein
s Sleep-deprived flies sensitive
to starvation
16 ENVIRONMENT
s Leaky gas wells release more
methane than thought
s World’s water moves with
food exports
18 SCIENCE & SOCIETY
s The birth and death of words
s A new way to trace an
epidemic’s origin
Special Section
20 90TH ANNIVERSARY ISSUE
COVER STORY: Science News
mines its past for highlights
from nine decades of science.
20 Plumbing the archives
22 1920s
23 1930s
24 1940s
26 1950s
27 1960s
28 1970s
30 1980s
31 1990s
32 2000s
Departments
2 FROM THE EDITOR
4 NOTEBOOK
34 BOOKSHELF
35 FEEDBACK
36 FROM THE ARCHIVE
Because of quantum
mechanics, the chopping of
photons is a fuzzy endeavor.