In The News
Features
9
5 STORY ONE
s Quarreling over quake clusters
8 MATTER & ENERGY
s How riderless bikes stay up
s New symmetry among spirals
20 CRUSHING CANCER’S
DEFENSES
COVER STORY: After many misfires, some therapeutic cancer
vaccines begin to show promise.
By Daniel Strain
10 LIFE
s Penguin population shrinks
without krill for dinner
s Antarctic microbes reprise
early life’s assembly skills
24 MOVED BY LIGHT
Racing to enter the quantum
realm, scientists use lasers and
other means to drain energy
from everyday objects.
By Devin Powell
11 GENES & CELLS
s Caterpillar and plant share
recipe for making cyanide
s Genetic clues to peppered
moths’ clever disguise
28 YAWN
New studies of why people
yawn are anything but a bore.
By Laura Sanders
18
Essay
12 ATOM & COSMOS
s New limits on the dark stuff
s Big Bang–replicating material
rules out time travel
14 NUMBERS
s Cells chart best routes for
traveling salesman
30 ATOMIC ANATOMY
A century ago, Rutherford
discovered the atom’s core,
initiating the nuclear age.
By Tom Siegfried
Departments
2 FROM THE EDITOR
24
16 HUMANS
s Orangutans stick it to catfish
s New fossils fuel debate over
Homo genus origins
4 NOTEBOOK
33 FEEDBACK
34 BOOKSHELF
17 BODY & BRAIN
s Breast milk as cancer clue
s Stomach cancer triple
threat — beer, bugs and genes
s Dancing robot gets down
to new role for copycat
nerve cells
s With money on the line,
actions betray words
36 COMMENT
Geneticist James P. Evans on the
realities of genomic medicine.
28
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May 7, 2011 | SCIENCE NEWS | 1
