9
10
12
18
5 STORY ONE
s Solar data tweezed from
crashed Genesis craft
8 GENES & CELLS
s RNA finding challenges
central dogma of genetics
s Mending broken hearts
s Blue light special for diabetes
10 LIFE
s Dino teeth suggest humanlike
body temperature
s Finch fathers at fault for
philandering females
s Single-celled yeast go
multicellular in a test tube
12 ATOM & COSMOS
s Sun headed for hibernation
s Message from Mercury: Dark
craters could contain ice
13 EARTH
s Industrial era brought faster
sea level rise
14 MATTER & ENERGY
s Friction predictions get
a little less rough
s Catching a quantum wave
s Living laser could probe
microscopic realms
s Physicist gives golf advice
16 MOLECULES
s Collagen finding injects new
data into dino-tissue debate
s Spinning nanowires thinner
than spider silk
17 BODY & BRAIN
s Ketamine’s effect on
depression discovered
Features
18 COLLAPSING COASTLINES
As the Arctic warms, shoreline
erosion appears to be gaining
momentum, threatening villages and their inhabitants.
By Daniel Strain
22 THE POWER OF D
COVER STORY: A host of
studies suggest vitamin D
has value that goes beyond
bone health — but scientists
remain divided.
By Nathan Seppa
Departments
2 FROM THE EDITOR
4 NOTEBOOK
28 BOOKSHELF
30 FEEDBACK
32 FROM THE ARCHIVE
After more than 80 years, a
theory that too little vitamin D
led to the demise of the dinos
still awaits a shred of evidence.
