Scientific American Magazine

Cloned early-stage human embryos--and human embryos generated only from eggs, in a process called parthenogenesis--now put therapeutic cloning within reach

Biology and economics may explain why we value fairness over rational selfishness

Advanced nuclear power plants might be the best way to meet future energy needs without worsening global warming

Science defends itself against The Skeptical Environmentalist

Engineers have discovered a way to pack more computing power into microcircuits: build them vertically as well as horizontally

Filled with colossal fountains of hotgas and vast bubbles blown by exploding stars, the interstellar medium is far more interesting than scientists once thought