
Stories by Sarah Simpson


Fueling Predictions

Deep Thoughts
How to journey to the center of the earth--maybe

Rising Sun

The Unusual Suspects

Headed South?
Earth's fading field could mean a magnetic flip soon

Questioning the Oldest Signs of Life
In the past year scientists have been forced to reconsider how they identify life in the most ancient rocks on earth--and elsewhere in the solar system

Foiling a Faint Sun
Hungry bacteria may have warmed an ancient earth

Regenerating the Heart

Fire and Ice

Headed South?
Earth¿s fading field could mean a magnetic flip soon

A Push from Above
The ozone hole may be stirring up antarctica's climate

Coal Control
Tacklng the health dangers of China's "dirty" coal

Thawing Scott's Legacy
A pioneer in atmospheric ozone studies, Susan Solomon rewrites the history of a fatal polar expedition

Triggering a Snowball
Did Methane Addiction Set Off Earth's Greatest Ice Ages?

More Than Shade

Faster Than a Snail's Pace

Shrinking the Dead Zone
Political uncertainty could stall a plan to rein in deadly waters in the Gulf of Mexico

Fishy Business
Cyanide fishing threatens many of the last pristine coral reefs in Southeast Asia. Will an ambitious program to clean up the marine aquarium trade be enough to save them?

Deeper Impact
Was yet another mass extinction the work of an asteroid?