Nuclear Planet
Is there a five-mile-wide ball of hellaciously hot uranium seething at the center of the Earth?
by Brad Lemley
Bad Science and Breast Cancer
For more than a decade, physicians convinced breast cancer patients that bone marrow transplants were their best hope of salvation. But the insurance companies who resisted paying for the procedures were right all along: It was experimental medicine and most women were a lot better off without it. How could so many oncologists ignore basic principles of science?
Endangered Chocolate
The botanical battle to save an ancient flavor
Flying Blind
The war in Afghanistan has exposed a new level of U.S. expertise in pilotless aircraft. Meet the Global Hawk. and prepare to hear a strange announcement on a future airline flight: This is your computer speaking . . .
Not Out of Africa
Alan Thorne's challenging ideas about human evolution
When Lightning Strikes
An emergency room doctor faces a summer nightmare
