Random Sample

Abstract

Curiosity rover's 7 minutes of terror had the happiest of endings: The 500,000 lines of computer code went off without a glitch. Researchers have found the first direct evidence of "black drink," part of a purification ritual practiced by the native people in the American southeast in the 1600s that involving dancing, drinking, and vomiting. And this week's numbers quantify the ratio of withdrawal to input of ground water and the amount Novartis will invest in a research center to develop a cancer vaccine.