Former U.S. Army Sgt. Kristofer Goldsmith / Photo: Somodevilla / Getty Images

Casualties of war?

Suicides among U.S. Army personnel today are at their highest levels since the military began keeping records 30 years ago.
Ovarian cancer cells

Fertility hope for ovarian cancer patients

New research suggests that women with early-stage ovarian cancer may have more choices.
Bärbel Hönisch and mass spectrometer

C02 shell game

By analyzing the shells of single-celled plankton, Columbia geochemists have estimated past carbon dioxide levels in the sharpest detail ever.

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